You are right, times like these really test the cryptocurrency investor. It is a time for weak hands to drop out and for the strong to remain. Is the bottom near? Nobody knows. Are we in a bubble? If so, is the bubble bursting? I don't think so, but there is a good argument that Bitcoin is in a bubble and has some tough time ahead. I hope not. I hope we go up before any bubble bursts. However, if a bubble is to burst now or in the future, things for Bitcoin and other currencies (at least the strong ones) can still be OK. Once all the dust settles, we will see which project is still around, which one will be the future of electronic cash, or DApp platforms, of all the other wonderful options the blockchain can do for us.