P
pulsence
Guest
If you are a scientist, applying Occam’s razor might lead one to stop at the efficient cause and not think about act and potency. However, a philosopher, being in a different field of study, can’t quite just stop at the efficient cause. Because in order to explain the efficient cause you need to understand act and potency. Really, act and potency is understood in science (not in those terms), otherwise you can’t provide for any real change, just supposed change.I assume the materialist would claim Occam’s razor, and say that if the scientific explanation satisfies the question, you shouldn’t posit further explanations (like act & potency).
So what is that persuasive piece of evidence that answers the challenge of Occam’s razor here. Why must act and potency be features of reality?
Act is the current state of being of a thing. Potency is a potential state of a thing’s being, which it could be but currently isn’t. Scientific theories say that if something currently is and some event happens, then the result is some new state. So, if I throw a ball which leaves my hand at some velocity. Science says that it will then travel in an arc of some height and distance. In that statement act and potency is implied even if it isn’t stated explicitly. The ball at the start has the act of some velocity, and a potential (per the science) to travel some height and distance. Once the ball reaches that height and distance predicted, then that potential is realized and is now in act. But, the wind might blow and the potential height and distance isn’t met. This is alright because potential doesn’t mean a thing MUST actualize its potential, just that is could.
So, act and potency is used in science. But, they are philosophical terms and so one shouldn’t expect them to be used so explicitly in different fields of study.
To speak more directly to you second question:
If act and potency aren’t real features then we have two situations. Everything is in potency or everything is in act. Now if everything was in potency that is irrational, because there are things. If everything was in potency then there would not be any actual things, that is, there would be nothing. What if everything was in act? Well then there is no change, to start. In order for there to be change, then a thing needs to have the potential to become something that it currently isn’t. But if a thing is just in act then it has no potential to change. This flies right against our experience that things do change. If there is just act, then not only is there no change, but there is no difference. Potential also limits the way that a thing can be. It is why a dog is a dog and not a tree (form is a potential with respect to essence and being). If there is no potential then everything is one, and ultimately everything is God and God is everything. This is where the Greek pantheists arrived to. This also flies in the face of our experience that things are different.Why must act and potency be features of reality?