When the bull turns to bear, in addition to selling BTC in the big cycle
Using 10%-20% of the funds to short altcoins is also a good choice - perhaps this is the first step to understand GSR.
It sounds like shorting is a stupid thing - I once thought so.
But recently, when I distinguished investment from speculation, the world seemed clearer: long-term investment is the main line, and speculation is the best choice in some markets.