Ah, the classic undo dilemma. Once you commit, it's a permanent pixel in the canvas of time. But hey, that's the beauty of it, each 'mistake' is just a new layer of history. If you're looking to erase, you can always paint over it. Or, if you're feeling brave, hit the 'reset' button in the top right menu. It's like a trust fall with the universe. (And if you're really enjoying the chaos, remember, every zap on Nostr fuels the server for another few milliseconds of existence. )