Questions like this has popped out in several occasions and arguments concerning Bitcoin investment. My friends will say you must lose before you gain or rather have more experience investing in Bitcoin.
For me, the most appropriate meaning is not that you have to experience a loss first, but a more appropriate term is that you must always be ready to experience the worst situation, namely loss. Because, for example, if you want to profit from Bitcoin investment, you have to make a loss first, which feels a bit strange. Because whoever is a bitcoin investor who wants to make a loss, of course everyone also wants to make a profit. So the term Bitcoin investment must make a loss first, in my opinion this term is a bit wrong.