This is waaaaaaaaaaay overthinking things.

I'm pretty sure that the brain is almost all the same on the cellular level from birth until death (it gets bigger with maturity because it expands), and roughly half the heart. Not sure about the atomic or sub-atomic levels or how that might make a difference, though.

But yeah, the vast majority of the body is replaced and replicated after several years. Or forgery I guess, as this guy puts it. Everything comes from everything.

It does raise very interesting questions about identity, especially if you take it to a very philisophical level. Ideas, people, objects, ect. alter themselves all the time and they're all connected in many ways that aren't immediately apparent.

This video is dumb.

Energy recycles and changes. Life replicates and copies. YOU can call it "forgery" for whatever reason you want, but nature doesn't have words like "forgery" or "theft" it only recycles and copies. Human's invented the concept of ownership, and therefore "forgery" and "theft" exist only relative to the idea of ownership. Hence the logic breaks down when you try to apply the human invention of ownership to the natural world: because it doesn't exist in the natural world.

You might as well be asking "How come animals can eat without money? WTF?!"

"I've just has an epiphany: Nothing makes any sense to me!" Well done sir. Well done.

this is a weird video.