>A better rule, however, is: do not try to time the market. Just invest when you can. Well, that rule assumes two things: 1. That you're investing for the lon

>A better rule, however, is: do not try to time the market. Just invest when you can. Well, that rule assumes two things: 1. That you're investing for the long term (i.e. retirement), and more importantly, 2. That you're investing in the stock market, which has a very long track record of going up more than it goes down, such that it always goes up over the long term. That second one, in particular, is much more of an open question when it comes to BTC.