G
greylorn
Guest
Instead of “concise,” I’m going for an explanation which any readers will understand. My concise explanations have a way of zinging over people’s heads.I, for one, would appreciate your concise definition of a singularity as opposed to what the TV offers. Assuming the big bang is correct, then would the point where it all started be this singularity?
It almost sounds like equating this singularity to God and asking how something immaterial became material to bring about all this energy (which I’ll assume must have existed on its own from the very beginning because it can’t be created).
That’s why I ask for clarification on the matter (no pun intended).
A singularity is a mathematical statement which, when reduced, turns out to equal infinity. The most obvious example is: x/0 (any number divided by zero). Another example is the tangent of 90 degrees.
Physics students who write equations on exams which reduce to a singularity, get an F. When a singularity appears in an equation which attempts to describe a physical phenomenon, it means that the description is incorrect, or useless. However, this only applies to students of physics.
After one gets a Ph.D. in physics, one is allowed to write goofy equations which cannot be solved without producing infinity as a result. Since there is no one with enough authority to correct the tenured nits who do this, they get away with it.
Unfortunately, in order to conceal their incompetence (if it were ignorance, they could simply admit it) they extend the silliness, and make the claim that because their (incorrect) mathematical description leads to a singularity, the thing they are describing actually is a singularity.
That is how the notion of a “physical singularity” came into being. Of course, there is no such thing. Nevermind what Stephen Hawking says. There is no singularity at the center of a black hole. There is only a singularity when his mathematical descriptions of a black hole are applied to conditions at its center.
Here is a simpler example. Years ago I was given the job of getting a tiny computer to control a telescope automatically. This required solving pointing equations, just basic trigonometry. All worked fine, except that when the telescope was pointed directly overhead, perfectly vertical, the pointing equations blew up— meaning, their solution went to infinity.
Now any idiot could figure out that this did not mean that a vertical position could not be achieved. Therefore I did not walk into my boss’s office and declare that I’d just discovered a physical singularity. Instead, I used software tricks to work around the problem.
Physics has gotten increasingly dogmatic over the course of my lifetime, perhaps because its exposure on documentary channels has produced TV gurus, who, like any gurus, need to be always right. Were Hawking to honestly declare, “Since my equations reduce to a singularity at the center of a black hole, and we know that such things do not exist, I must rethink my math, or even more troublesome, my understanding of physics.”
That would be as likely as our president declaring that his economic policies are certain to bankrupt the nation.
Clearly, the Big Bang is not correct, because its precursor, the tiny micropea containing all the mass-energy in our universe, would have to be a physical singularity, which cannot exist. Therefore I’ll not presume that the Big Bang is a correct explanation for the beginnings of things.
Re: your second point. Given these considerations, I think that it would be really stupid to declare that God is a singularity. Religions have already done the equivalent by declaring Him to be a spirit, non-physical, and outside the constraints of logic or physical law. Why replace a bad idea with a worse one?
There is a perfectly valid description of the physics of God, derived from simple classical physics using common logic. No, it would not be appropriate to try to explain this on CAF without permission. I’m not ready to request that.