Let us see if bitcoin will even get to $10k, not to talk of $1k which seem not possible.
What will be running in your mind if Bitcoin reaches $1000 again
Just slap yourself and you may later find out that you are dreaming after you wake up from sleep.
It depends on what actually caused the drop that big. If there's nothing wrong with bitcoin fundamentally and that people just got bearish for whatever BS reason, then I'd surely be drooling and pouring capital into bitcoin.
Only what would cause that will be what can take down bitcoin and I expect all other crypto to have almost died by that time and likely bitcoin also will follow but can be the last.