[drewcoo]

> A river is made up of different water molecules every day, yet it's the same river over millennia.

Heraclitus would like a word with you.

[didericis]

And Parmenides would like a word with you.

It’s amazing to me people agree on definitions for anything, given people have been having the same basic abstract arguments for what makes thing A thing A and distinct from thing B for thousands of years.

[svara]

My argument was in some sense more shallow, I just made a point about how we talk about things.

You can open a map and find that a river has a name, that's true no matter your stance on what it "really is".