You haven't lost if you haven't dump your bitcoins already.
I don't buy into that line of thinking. It's true that you haven't had an
actual loss if you didn't sell, but you still have a
paper loss, and that's just as bad IMO. Bitcoin is only worth what the market says it is, and if you bought at $20k, you're in the red whether you sold below that price or not. It's kind of like saying you haven't made money unless you sold. Mark-to-market accounting would suggest otherwise.
I do agree with what's stated in the title. This "moon" idea has been floated around for years, and what we're seeing right now is just a little recovery, and none of us knows whether it's going to be sustainable. It does seem to be gradual gain rather than exponential growth (so far), so that's a good sign.