That's so amazing, they can predict the very right thing at the time, in fact we see bitcoin reach $18k in 2017 they only keep their assets in bitcoin in the next few months that will make them able to interfere for 4 years without working. I myself even regretted the same year and regretted why having to sell assets early in the next few months was soaring to hundreds of times the profit. It's not too late! there are many more concepts of bitcoin that can be excavated, for example, hardfork, now that we are in the Era of DeFi, What's Next?