Felix wrote: ↑June 27th, 2019, 2:49 am
"If you are interested I will explain why I am an anti-substantialist."
Go ahead, Gary, it appears spiltteeth lost his front tooth and went off to find it.
Substance individuates. It is the individual that has or exemplifies properties. It is also that which accounts for self-identity through change. It is that last thing that is the problem.
Consider a piece of fruit on a tree. At first it is very little. As it get older and bigger its color and texture change. Finally it is ripe and then it falls to the ground and withers and drops the seeds within it. All the while it remains that particular individual. It is self-identical through change. Let’s call that individual, that substance, X. At time t1 X is F. at t2 X is G, at t3 X is J, at t4 X is H. Its properties F, G, J, and H change but X remains X. X is little, X is big, X is green, X is red. What keeps all that from being a contradiction is that each fact about X takes place at a different time. If they happened all at once, then it would truly violate the Law of Non-Contradiction.
So now we have to consider t1, t2, t3, t4 … tn. Do such moments that a substance is at really exist? And what about the nexus “at”? Are there really moments that individuals are at? Let’s assume that there are. These moments are related to each other. One is much later than another and one is more recent. So far, so good. Now along comes the Theory of Relativity, which says that the “distance” between moments changes according to one’s point of view. It can even happen that what is after from one point of view can be earlier from another. Moments it seems won’t stay put. They are not absolute, but relative. Absolute time vs. relative time. Newtonian time vs. Einsteinian time. With the coming of relativity, the whole notion of there being fixed moments that objects are at, becomes untenable.
So if we cannot say that the existence of absolute time and moments guarantees that change does not become contradictory, then what does? The notion of substance requires the notion of absolute time to avoid becoming self-contradictory. So either we have to drop the idea of substance or think of some other way to save it from contradiction. What other way is there? Beats me. As far as I know no philosopher has thought of any. In fact, I will go so far as to say that the problem of accounting for self-identity through change is a philosophical problem that human beings cannot solve. The End.
I half-way solve the problem by denying the existence of change tout court. I stand with Parmenides and Nagarjuna in that belief. A mad vision.