I want to know the answer to the following question:
Why couldn't each moment of each person's life be given a different proper name?
All the background I'm provided with is that "After all, each moment of each person's life can hardly be given a different proper name, and it is easy and convenient to think of people and objects as remaining fundamentally the same things, rather than constantly keeping in mind that each thing is a different thing from what it was a moment ago.". Is that enough to answer the question?