Let's say I generate a new address and by some miracle it has Bitcoin already in it belonging to somebody else. Is it legal to just take it? I understand those odds are very low, no need to lecture me, I'm just interested.
I think more this question is more about ethical than legal aspect.If you get coins by mistake in your wallet.the chances are the person who send it mistakenly will not try to find you in the first place for it wouldn't be that easy.Second even if he found you somehow.he could not prove if it was sent by mistake so it is up to you ( the receiver0 to return it on ethical grounds