The First Way Explained

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FYI alert. I just purchased Nature and Motion in the Middle Ages by James A. Weisheipl O.P, Used books of this title are becoming rare and go from $140 - $363 U.S. New are over $2,000 Canadian. I can’t tell you who to order from ( rules ), but start with " A." All serious students of Thomas should have this book.

Linus2nd
 
Will be posting again in a few days. I am curious to know if any of you managed to get a copy or have any of you ordered a copy of Nature and Motion in the Middle Ages?

Linus2nd
 
Hope every thing is O.K.
Thanks but nope, far from OK, it cometh and it goeth.
He said it was a property of all beings having mass but he rejected the notion of " attraction " between bodies. Therefore it does not seem beyond reason to suggest that gravity is a property of the nature of beings with mass and this would correspond closely with the notions of Aristotle and St. Thomas.
Gravity isn’t a property of “beings having mass” - if it was then it wouldn’t vary with their separation. It’s an interaction of matter with spacetime, by which spacetime curves in the presence of matter. Inertial bodies follow geodesics through this curved spacetime, and I think you have your work cut out trying to reconcile the first way with that.

Incidentally, I think it’s fine to link to amazon or whatever for books, I’ve seen others do it. As long as it’s info rather than advertizing.
 
Thanks but nope, far from OK, it cometh and it goeth.
Whatever the problem, I hope it either gets fixed or you leard how to tolerate it. At least you are back.
Gravity isn’t a property of “beings having mass” - if it was then it wouldn’t vary with their separation. It’s an interaction of matter with spacetime, by which spacetime curves in the presence of matter. Inertial bodies follow geodesics through this curved spacetime, and I think you have your work cut out trying to reconcile the first way with that.
I’m still dealing with Newton and will be for awhile. I know less about " space time curvature and its relation to mass than what might be found on a bad Wikipedia. What I hope to establish is that modern science does not conflict with the First Way. If that includes Relativity and Special Relativity, I hope to deal with that too. But I will say that those who say it does should explain just how it does, not just repeat assertions.

Linus2nd

Incidentally, I think it’s fine to link to amazon or whatever for books, I’ve seen others do it. As long as it’s info rather than advertizing.
 
A pause to elaborate what I just said. The laws of physics really do not matter, we bank on the fact that there are laws and these hold true for every entity in the universe. Otherwise there would be no laws and there would be no science. What will be seen in the coming episodes is that a moving object ( and here we are using " moving " in the sense of local motion) has a nature such that it moves naturally and seeks its proper place in the universe, naturally. No accompaning mover ( motor ) is required for objects to do what flows naturally from their natures.

The efficient cause of the movement is the agent which gave it the nature in the first place. ( Here I am assuming a moving object only, by example). Once it exists and has a nature, it moves naturally, and seeks its proper place naturally. The agent is no longer needed ( except of course an agent is required to keep it in existence. But this agent, we will see, is not one in a string of such agents, but outside any such string.). Theories of Relativity and Special Relativity or whatever, would not prevent any such natural activity. They may cause other activity but then they would be acting as a second or third or a fourth, etc. agent governing and directing the motion in a manner other than formally. Here I am thinking of " forces " such as Relativistic space-time-"gravity, " or any other " entity " of some future theory.

This would also be in perfect with Thomas Aquinas’ explanation of motion and would not threaten the First Way.

Linus2nd
 
I’m still dealing with Newton and will be for awhile. I know less about " space time curvature and its relation to mass than what might be found on a bad Wikipedia. What I hope to establish is that modern science does not conflict with the First Way. If that includes Relativity and Special Relativity, I hope to deal with that too. But I will say that those who say it does should explain just how it does, not just repeat assertions.
Coming back to this, I now realize that from the perspective of modern physics, the First Way isn’t just out of skew, it actually disproves the existence of the unmoved mover! (Not God, just the unmoved mover of the argument.) And it does so in every way imaginable: the unmoved mover (i) has nothing to do in spacetime, (ii) impossibly does opposite things simultaneously in relativity, and (iii) redundantly duplicates every man and his dog at atomic scales.

(ii) and (iii) were discussed on the old thread, while (i) is due to that little word geodesic.

Anyhow, just a warning to be careful your project doesn’t backfire on you.

The standard undergraduate work on physics is Feynman Lectures on Physics. Volume 1 is the most useful, and you’ll find it online at feynmanlectures.caltech.edu. You could try reading relevant chapters while ignoring the math if that’s not your forte.

To start with, you might like 16–1 Relativity and the philosophers.
 
Coming back to this, I now realize that from the perspective of modern physics, the First Way isn’t just out of skew, it actually disproves the existence of the unmoved mover! (Not God, just the unmoved mover of the argument.) And it does so in every way imaginable: the unmoved mover (i) has nothing to do in spacetime, (ii) impossibly does opposite things simultaneously in relativity, and (iii) redundantly duplicates every man and his dog at atomic scales.

(ii) and (iii) were discussed on the old thread, while (i) is due to that little word geodesic.

Anyhow, just a warning to be careful your project doesn’t backfire on you.

The standard undergraduate work on physics is Feynman Lectures on Physics. Volume 1 is the most useful, and you’ll find it online at feynmanlectures.caltech.edu. You could try reading relevant chapters while ignoring the math if that’s not your forte.

To start with, you might like 16–1 Relativity and the philosophers.
The first thing is to get a proper handle on how reality is to be understood philosophically, secondly one has to see how it can indeed accomodate whatever physics is thrown at it. Then of course one must understand exactly what modern physics says and what it doesn’t say. Then those who raise objections must do more than object, they must show how the objection is valid. So far the latter has not been done - by anyone. There has been a lot of rhetoric but that is all. They certainly haven’t been proven by anything said on this thread or by any other thread on this forum that I have seen. So far the objections have been made along ideological lines such as Aristotelian/Thomistic Philosophy is old hat so certainly couldn’t have any applicability to modern physics.

My thesis is that this philosophy, describing the underlying matter-form structure of reality and the causal realtions of this reality is valid or all valid science, no matter what it may be. God did not create two realities but one. An ontological one that exists and functions at two levels, one metaphysical, the other measurable and observable ( at least theoretically - so far many points applicable to the latter are highly interpretative and in constant flux and revision, rather like the greased pig at the fair.)
Linus2nd
 
The first thing is to get a proper handle on how reality is to be understood philosophically, secondly one has to see how it can indeed accomodate whatever physics is thrown at it. Then of course one must understand exactly what modern physics says and what it doesn’t say. Then those who raise objections must do more than object, they must show how the objection is valid. So far the latter has not been done - by anyone. There has been a lot of rhetoric but that is all. They certainly haven’t been proven by anything said on this thread or by any other thread on this forum that I have seen. So far the objections have been made along ideological lines such as Aristotelian/Thomistic Philosophy is old hat so certainly couldn’t have any applicability to modern physics.
You went and got all defensive again.

The author of the video which you recommended in your OP also pointed out that the First Way is based on a physics which is now known to be dead wrong, thus the argument fails. You’ve said you don’t have much knowledge of physics such as relativity. As a result it appears you don’t understand the magnitude of the errors. I’ve tried to help but am not the one to teach, nor is an online forum a suitable venue.

Your response to specific objections has been to call Dr Magee names and do some vague arm waving at me. Rhetoric and ideology indeed. 😛

Anyhow, what can I say that might be helpful?
  1. Thomas said truth cannot contradict truth, so you can’t follow a Thomist path by saying “the laws of physics really do not matter” (post #62) or what you said above. A true philosophy can’t be based on what we know to be false. Fairy tales yes, philosophy no.
  2. Other posters have had pet theories or projects. Now this might be teaching you to suck eggs, but from what I’ve seen the one thing common to those who fail is they don’t write down their objectives and stick to them. Are you trying to explain the First Way in its historical context? To test it against modern science and philosophies? To place it in a contemporary theological context? Something else? You can’t do them all.
  3. If your objective is to bring atheists into church, the Popes’ remark about decadent Thomists reminded me of a stinging warning about abstract argumentums from the previous Pope in his book “In the Beginning”:
“As far as theological views of this sort are concerned, finally, quite a number of people have the abiding impression that the church’s faith is like a jellyfish: no one can get a grip on it and it has no firm center. It is on the many half-hearted interpretations of the biblical Word that can be found everywhere that a sickly Christianity takes its stand – a Christianity that is no longer true to itself and that consequently cannot radiate encouragement and enthusiasm. It gives, instead, the impression of being an organization that keeps on talking although it has nothing else to say, because twisted words are not convincing and are only concerned to hide their emptiness.”

:eek:
 
You went and got all defensive again.

The author of the video which you recommended in your OP also pointed out that the First Way is based on a physics which is now known to be dead wrong, thus the argument fails. You’ve said you don’t have much knowledge of physics such as relativity. As a result it appears you don’t understand the magnitude of the errors. I’ve tried to help but am not the one to teach, nor is an online forum a suitable venue.

Your response to specific objections has been to call Dr Magee names and do some vague arm waving at me. Rhetoric and ideology indeed. 😛

Anyhow, what can I say that might be helpful?
  1. Thomas said truth cannot contradict truth, so you can’t follow a Thomist path by saying “the laws of physics really do not matter” (post #62) or what you said above. A true philosophy can’t be based on what we know to be false. Fairy tales yes, philosophy no.
  2. Other posters have had pet theories or projects. Now this might be teaching you to suck eggs, but from what I’ve seen the one thing common to those who fail is they don’t write down their objectives and stick to them. Are you trying to explain the First Way in its historical context? To test it against modern science and philosophies? To place it in a contemporary theological context? Something else? You can’t do them all.
  3. If your objective is to bring atheists into church, the Popes’ remark about decadent Thomists reminded me of a stinging warning about abstract argumentums from the previous Pope in his book “In the Beginning”:
“As far as theological views of this sort are concerned, finally, quite a number of people have the abiding impression that the church’s faith is like a jellyfish: no one can get a grip on it and it has no firm center. It is on the many half-hearted interpretations of the biblical Word that can be found everywhere that a sickly Christianity takes its stand – a Christianity that is no longer true to itself and that consequently cannot radiate encouragement and enthusiasm. It gives, instead, the impression of being an organization that keeps on talking although it has nothing else to say, because twisted words are not convincing and are only concerned to hide their emptiness.”

:eek:
I don’t see how you can regard anything I said as " defensive, " just stating facts. You surely don’t expect me to respond to all these misplaced allegations. Why does it upset you so that I want to show that modern science does not confilict with the philosophy of Aristotle-Thomas Aquinas. I may convince some, others will not be convinced. I see no reason why the effort should get you so upset. And of course I can’t do it in a couple of posts. So stay tuned but I need time to present the case.

As I have said before, Aristotle and Thomas Aquinas have been under fire for a couple of centuries by ideologues, and today principally by assorted skeptics, atheists, positivists, idealists who view them as the principal threats to their world view. What I don’t understand is the objections coming from a Christian. The Bible is fine but the Bible didn’t even start to come into existence until toward the end of the first century. And who knows when the final books were completed.

The point is there was nearly a hundred years of Tradition where all Christians had was what was preached from what had been passed on by word of mouth ( Tradition ). So Tradition came before the Bible. And St John tells us that if everything Christ said or did was written down, all the books in the world wouldn’t hold them. And again, " …I will send the Spirit who will teach you all things…" So obviously, not all the truths of faith are specifically mentioned in the Bible. And where does it say anything in the Bible that we cannot use reason to arrive at the truth of things? If it is allowed to science, it is also allowed to philosophy.

You have put great stress on the Bible as a reason to reject Scholastic Philosophy. Well, there is no modern science in the Bible, yet you do not reject it. On the contrary, you seem to regard it as a kind of demi-god. It doesn’t add up to me.

P.S. I never said " science does not matter " in the sense you imply. I meant that sciece does not conflict with the philosophy of St. Thomas and no true science would. Nor does it disprove the First Way, as I hope to demonstrate. I appreciate science, everything around me depends on its success. But that does not mean that I agree with certain men and women who have taken it upon themselves to speak on behalf of science to the detriment of philosophy or faith for that matter.

Linus2nd
 
To repeat with additions.
You went and got all defensive again.

The author of the video which you recommended in your OP also pointed out that the First Way is based on a physics which is now known to be dead wrong, thus the argument fails. …
I have already responded to these opinions of yours. They are not " dead wrong " and neither you nor anyone else has proved them to be. So I’m not a physicist, do physicists and scientists have a corner on objective judgment on transmiting the unvarnished truth, do you? I think not. I will do my own thinking thank you. And I have proven to you that the First Way does not depend on place to place motion, you prefer not to accept my explanation because you have an agenda, that has been adequately demonstrated.
Your response to specific objections has been to call Dr Magee names and do some vague arm waving at me. Rhetoric and ideology indeed. 😛
Because I reject Magee’s objections, I’m arm waiving. No Thomist of any standing would agree with Magee. I reject him absolutely.
"Anyhow, what can I say that might be helpful?
Oh boy, here it comes, the unvarnished truth.

  1. Thomas said truth cannot contradict truth, so you can’t follow a Thomist path by saying “the laws of physics really do not matter” (post #62) or what you said above. A true philosophy can’t be based on what we know to be false. Fairy tales yes, philosophy no.
I never said " science does not matter " in the sense you imply. I meant that sciece does not conflict with the philosophy of St. Thomas and no true science would. Nor does it disprove the First Way, as I hope to demonstrate. I appreciate science, everything around me depends on its success. But that does not mean that I agree with certain men and women who have taken it upon themselves to speak on behalf of science to the detriment of philosophy.
  1. Other posters have had pet theories or projects. Now this might be teaching you to suck eggs,
Really, now come the little scribblings on walls in out of the way places.
but from what I’ve seen the one thing common to those who fail is they don’t write down their objectives and stick to them. Are you trying to explain the First Way in its historical context? To test it against modern science and philosophies? To place it in a contemporary theological context? Something else? You can’t do them all.
Thank you for all the encouragement. Very helpful, I will keep it in mind.
  1. If your objective is to bring atheists into church, the Popes’ remark about decadent Thomists reminded me of a stinging warning about abstract argumentums from the previous Pope in his book “In the Beginning”:
You seem to have a fixation on my trying to " bring atheists " or some innocent into church. I really don’t give a plug nickle for atheists, it is hopeless to argue with them. I care about the truth. Why should that be so hard to accept. If you want quotes from Popes, I can show you glowing words for St. Thomas’ philosophy by many Popes. And, not that it will mean anything to you, but Francis mentioned no names. You are extrapolationg to suit yourself. That won’t be missed by anyone.
“As far as theological views of this sort are concerned, finally, quite a number of people have the abiding impression that the church’s faith is like a jellyfish: no one can get a grip on it and it has no firm center. It is on the many half-hearted interpretations of the biblical Word that can be found everywhere that a sickly Christianity takes its stand – a Christianity that is no longer true to itself and that consequently cannot radiate encouragement and enthusiasm. It gives, instead, the impression of being an organization that keeps on talking although it has nothing else to say, because twisted words are not convincing and are only concerned to hide their emptiness.”
Perhaps you will show us all the way to do it. Good ideas are always welcome. The Pope will listen to anyone.

I don’t see how you can regard anything I said as " defensive, " just stating facts. Why does it upset you so that I want to show that modern science does not confilict with the philosophy of Aristotle-Thomas Aquinas. I may convince some, others will not be convinced. I see no reason why the effort should get you so upset. And of course I can’t do it in a couple of posts. So stay tuned but I need time to present the case.

As I have said before, Aristotle and Thomas Aquinas have been under fire for a couple of centuries by ideologues, and today principally by assorted skeptics, atheists, positivists, idealists who view them as the principal threats to their world view. What I don’t understand is the objections coming from a Christian. The Bible is fine but the Bible didn’t even start to come into existence until toward the end of the first century. And who knows when the final books were completed.

The point is there was nearly a hundred years of Tradition where all Christians had was what was preached from what had been passed on by word of mouth ( Tradition ). So Tradition came before the Bible. And St John tells us that if everything Christ said or did was written down, all the books in the world wouldn’t hold them. And again, " …I will send the Spirit who will teach you all things…" So obviously, not all the truths of faith are specifically mentioned in the Bible. And where does it say anything in the Bible that we cannot use reason to arrive at the truth of things? If it is allowed to science, it is also allowed to philosophy.

You have put great stress on the Bible as a reason to reject Scholastic Philosophy. Well, there is no modern science in the Bible, yet you do not reject it. On the contrary, you seem to regard it as a kind of demi-god. It doesn’t add up to me.

Linus2nd
 
Coming back to this, I now realize that from the perspective of modern physics, the First Way isn’t just out of skew, it actually disproves the existence of the unmoved mover! (Not God, just the unmoved mover of the argument.) And it does so in every way imaginable: the unmoved mover (i) has nothing to do in spacetime, (ii) impossibly does opposite things simultaneously in relativity, and (iii) redundantly duplicates every man and his dog at atomic scales.

(ii) and (iii) were discussed on the old thread, while (i) is due to that little word geodesic.
I’m afraid that your objections are not clear. If you want to object, fine. But explain why you think you are right. You can’t just shout, " I don’t agree, you are wrong. " You can say it of course but it has no convincing force.
Anyhow, just a warning to be careful your project doesn’t backfire on you.
One can only try.

The standard undergraduate work on physics is Feynman Lectures on Physics. Volume 1 is the most useful, and you’ll find it online at feynmanlectures.caltech.edu. You could try reading relevant chapters while ignoring the math if that’s not your forte.
He certainly isn’t talking about Thomas Aquinas or Aristotle. By the way Thomas was not teaching science, so what’s the beef? He is simply talking about movement and change, pretty hard to see how that could violate science, even Einstein’s. You do agree there is obvious movement and change in the world don’t you? Yes, and so does Feynman, otherwise he would never get in his car in the morning or he would never fly to the appointment of his next lecture. Or shall we say he lacks the conviction of his principles. He teaches one thing and he lives exactly contrary to those principles. Personally, I think he is a bit of a conceited boor.

Linus2nd
 
Coming back to this, I now realize that from the perspective of modern physics, the First Way isn’t just out of skew, it actually disproves the existence of the unmoved mover! (Not God, just the unmoved mover of the argument.) And it does so in every way imaginable: the unmoved mover (i) has nothing to do in spacetime, (ii) impossibly does opposite things simultaneously in relativity, and (iii) redundantly duplicates every man and his dog at atomic scales.

(ii) and (iii) were discussed on the old thread, while (i) is due to that little word geodesic.
On the last page you said:
[Gravity is] an interaction of matter with spacetime, by which spacetime curves in the presence of matter. Inertial bodies follow geodesics through this curved spacetime, and I think you have your work cut out trying to reconcile the first way with that.
Interesting that you describe gravity as an “interaction.” Perhaps you were speaking loosely, but such a description does not seem to preclude the First Way. (At least not obviously - not obviously enough that one can drop “that little word geodesic” and be done with it.)

There is also the issue that the First Way does not proceed from local motion alone, so even if it completely failed to explain inertial motion, it wouldn’t yet be refuted. (Though I agree with your general point - that students of the argument should be more versed in physics.)
 
[QOTE]1. Thomas said truth cannot contradict truth, so you can’t follow a Thomist path by saying “the laws of physics really do not matter” (post #62) or what you said above. A true philosophy can’t be based on what we know to be false. Fairy tales yes, philosophy no.
I wanted to come back to this remark you made because it is mystyfing to say the least. I never said " …the laws of physics really do not matter…" or any thing that could even remotely be so construed. If I did, please quote the offending passage. Thomism is based on nothing false. Just tell me what it is based on that is false, I will try to explain why you are wrong. The thing you must keep in mind is that Thomas was not teaching science but philosophy, two entirely different animals. But Thomas’ philosophy does not contradict anything in modern science.

Philosophy looks at reality at one level ( as I explained) and science looks at it in another way, the way things work. Philosophy looks at things the way they are undeneath the physical constructs. Science looks at the physical constructs. There is no contradiction or conflict here at all.

Linus2nd
 
😊 Apologies for not replying yet but the sun has got his hat on, there’s butterflies everywhere, it’s 26º (google says that’s 79 in ye olde scale you guys use), so I’m off out of here.
 
😊 Apologies for not replying yet but the sun has got his hat on, there’s butterflies everywhere, it’s 26º (google says that’s 79 in ye olde scale you guys use), so I’m off out of here.
We are having highs in the 50s-60s and lows in the 30s-40s and they say it will continue through the month. I wonder what space, time, mass have to do with that or perhaps Thomas would say that is the natural unfolding of the nature of things? 🙂

Linus2nd
 
I don’t see how you can regard anything I said as " defensive, " just stating facts. You surely don’t expect me to respond to all these misplaced allegations. Why does it upset you so that I want to show that modern science does not confilict with the philosophy of Aristotle-Thomas Aquinas. I may convince some, others will not be convinced. I see no reason why the effort should get you so upset. And of course I can’t do it in a couple of posts. So stay tuned but I need time to present the case.
It’s been said before that an argument requiring so much explanation that opponents wander off or fall asleep is called proof by intimidation, argumentum verbosium. 😛
As I have said before, Aristotle and Thomas Aquinas have been under fire for a couple of centuries by ideologues, and today principally by assorted skeptics, atheists, positivists, idealists who view them as the principal threats to their world view.
People who point out the flaws in arguments are not “ideologues”. You make it sound like there’s an international conspiracy. The truth is simply that we’ve learned a lot over the centuries, and as a result many arguments have bitten the dust.
*What I don’t understand is the objections coming from a Christian. The Bible is fine but the Bible didn’t even start to come into existence until toward the end of the first century. And who knows when the final books were completed.
The point is there was nearly a hundred years of Tradition where all Christians had was what was preached from what had been passed on by word of mouth ( Tradition ). So Tradition came before the Bible. And St John tells us that if everything Christ said or did was written down, all the books in the world wouldn’t hold them. And again, " …I will send the Spirit who will teach you all things…" So obviously, not all the truths of faith are specifically mentioned in the Bible.*
Whoa, back up. If you’re saying the First Way was dictated or inspired by God then you’re very much at odds with the CCC, which says revelation ended with Christ, specifically “Christian faith cannot accept “revelations” that claim to surpass or correct the Revelation of which Christ is the fulfillment”.

Nor does the Apostle’s Creed include any clauses about belief in Thomas’s philosophy.

Is there anything, anywhere in Catholicism, which says that belief in (or even knowledge of) Thomas’s philosophy is mandatory for lay Catholics?
And where does it say anything in the Bible that we cannot use reason to arrive at the truth of things? If it is allowed to science, it is also allowed to philosophy.
Reason is fine, but that assumes the First Way is reasonable, and we now know it isn’t.
You have put great stress on the Bible as a reason to reject Scholastic Philosophy. Well, there is no modern science in the Bible, yet you do not reject it. On the contrary, you seem to regard it as a kind of demi-god. It doesn’t add up to me.
That’s completely wrong. Reading the Bible doesn’t make someone a Christian any more than accepting abstract arguments such as the First Way makes someone a Christian.

What I would argue strongly is that Christ is not a theory, Christ is real. Imho a Christian must encounter God, must experience Christ, be baptized by the Spirit, or however we want to put it.

So philosophically, I would say that all “proofs” of agencies such as first movers are a distraction from meeting with the living God.
 
To repeat with additions.
Oh, and yet you say you’re not being defensive. 😃
*I have already responded to these opinions of yours. They are not " dead wrong " and neither you nor anyone else has proved them to be. So I’m not a physicist, do physicists and scientists have a corner on objective judgment on transmiting the unvarnished truth, do you? I think not. I will do my own thinking thank you. And I have proven to you that the First Way does not depend on place to place motion, you prefer not to accept my explanation because you have an agenda, that has been adequately demonstrated.
Because I reject Magee’s objections, I’m arm waiving. No Thomist of any standing would agree with Magee. I reject him absolutely. *
I guess you could always start a blog instead. They’re free and it would allow you to post your opinions while avoiding any adverse comments.
I never said " science does not matter " in the sense you imply. I meant that sciece does not conflict with the philosophy of St. Thomas and no true science would.
That sounded like a statement of faith, i.e. you made up your mind beforehand that “no true science” can conflict with Thomas. How doth thee know?

You might need to be a bit careful of how you’re interpreted here, given Pope Francis’ remark from the same interview in which he spoke of decadent Thomist commentaries. He said: “If the Christian is legalistic, restorationist, if you want everything clear and certain, then you’ll find nothing. The tradition and memory of the past must help us to have the courage to open new spaces to God. Those who today always look for disciplinarian solutions, those who long for an exaggerated doctrinal ‘security,’ those who stubbornly try to recover a past that no longer exists - they have a static and inward-directed view of things. In this way, faith becomes an ideology among other ideologies.”
Nor does it disprove the First Way, as I hope to demonstrate. I appreciate science, everything around me depends on its success. But that does not mean that I agree with certain men and women who have taken it upon themselves to speak on behalf of science to the detriment of philosophy.
Not sure how that can apply to the First Way, which is an argument relying on physics, albeit a wrong physics.
Thank you for all the encouragement. Very helpful, I will keep it in mind.
:curtsey:
*You seem to have a fixation on my trying to " bring atheists " or some innocent into church. I really don’t give a plug nickle for atheists, it is hopeless to argue with them. I care about the truth. Why should that be so hard to accept. If you want quotes from Popes, I can show you glowing words for St. Thomas’ philosophy by many Popes. And, not that it will mean anything to you, but Francis mentioned no names. You are extrapolationg to suit yourself. That won’t be missed by anyone. *
Interesting that me saying “if your objective is” managed to get converted to “fixation”… . And yes, agreed, I’ve said several times that Thomas did a lot of good work, but will point out once again to his fan club that Thomas was human, and humans are not perfect, humans make mistakes.
Perhaps you will show us all the way to do it. Good ideas are always welcome. The Pope will listen to anyone.
When Ratzinger wrote “[they give] the impression of being an organization that keeps on talking although it has nothing else to say” and Francis said “those who stubbornly try to recover a past that no longer exists”, I think they were speaking of the same people, so I reckon they know what needs to be done OK.
I don’t see how you can regard anything I said as " defensive, " just stating facts. Why does it upset you so that I want to show that modern science does not confilict with the philosophy of Aristotle-Thomas Aquinas. I may convince some, others will not be convinced. I see no reason why the effort should get you so upset. And of course I can’t do it in a couple of posts. So stay tuned but I need time to present the case.
Que? Not upset, except when personal remarks are made against guys like Magee.
 
I’m afraid that your objections are not clear. If you want to object, fine. But explain why you think you are right. You can’t just shout, " I don’t agree, you are wrong. " You can say it of course but it has no convincing force.
Interesting that you describe gravity as an “interaction.” Perhaps you were speaking loosely, but such a description does not seem to preclude the First Way. (At least not obviously - not obviously enough that one can drop “that little word geodesic” and be done with it.)

There is also the issue that the First Way does not proceed from local motion alone, so even if it completely failed to explain inertial motion, it wouldn’t yet be refuted. (Though I agree with your general point - that students of the argument should be more versed in physics.)
“Interaction” is defined as any action where objects have an effect on each another - so gravity isn’t a property of an object.

A physicist could explain this better than me, but to see the bijou problemette with gravity, consider the Earth orbiting the Sun. Newton wouldn’t speculate on what gravity is, i.e. on how the Earth and Sun “know” they must be attracted to each other, but Einstein explained it as them curving spacetime. To Newton, the Earth’s path is an ellipse, it constantly changes both direction and speed. But in Einstein’s curved spacetime the Earth follows a geodesic (i.e. a straight line).

In Thomistic terms, when considered as an ellipse the motion requires continually changing potential/actual, but when considered in curved spacetime there is no motion (in the Thomistic sense that nothing changes).

This shows that potential/actual is a false hypothesis, it disappears just by us changing the way we think. If it were true, we could only make it disappear by changing our coordinate system (in the way that different observers see an object as moving or resting in relativity).
 
I wanted to come back to this remark you made because it is mystyfing to say the least. I never said " …the laws of physics really do not matter…".
:confused: Errr… I quoted you verbatum from your post #62.
Philosophy looks at reality at one level ( as I explained) and science looks at it in another way, the way things work. Philosophy looks at things the way they are undeneath the physical constructs. Science looks at the physical constructs. There is no contradiction or conflict here at all.
Surely if we know for a fact that something is impossible in nature then any philosophy which doesn’t acknowledge that fact must be false?
 
“Interaction” is defined as any action where objects have an effect on each another - so gravity isn’t a property of an object.
I did not say that gravity is a property of an object. I am pointing out that if you are describing gravity as an interaction between matter and spacetime, you simply haven’t ruled out causality of the sort the first way calls for.
This shows that potential/actual is a false hypothesis, it disappears just by us changing the way we think. If it were true, we could only make it disappear by changing our coordinate system (in the way that different observers see an object as moving or resting in relativity).
Actually, it doesn’t show that potentiality and actuality are false hypotheses. I will reiterate:
There is also the issue that the First Way does not proceed from local motion alone, so even if it completely failed to explain inertial motion, it wouldn’t yet be refuted.
Since “motion” does not strictly refer to “local motion,” it’s just a false inference to conclude that “motion” is generally false because its application to local motion is in question. That said, as I noted above, as long as you are still describing gravity as an interaction, you don’t seem to be substantively disputing the first way.
 
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