What's the Oldest Thing You Own?

FireTower@lemmy.world to Ask Lemmy@lemmy.world – 101 points –
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Petrified wood, about 225 million years old.

By this logic, my oldest possessions are my protons, which are approximately the same age as the universe.

You mean "proton"?

You would have to expound. I understand that protons are identical to each other, but I've never heard that they're somehow all one particle.

That was a theory I read years ago. The idea is, that there is only one photon which exists more or less outside of time and so is everywhere a Proton would be expected.

Edit: was actually about electrons
https://en.m.wikipedia.org/wiki/One-electron_universe

The one-electron universe postulate, proposed by theoretical physicist John Wheeler in a telephone call to Richard Feynman in the spring of 1940, is the hypothesis that all electrons and positrons are actually manifestations of a single entity moving backwards and forwards in time.

The diamond in my wife's engagement ring is more than a billion years old.

It would be cool if we could ID which exploding star it came from.

Diamonds are produced in the earth's crust. The gold in that ring though...

the elements that eventually ended up in earth's crust had to come from somewhere

and i just realized that by this logic everything is actually as old as the universe