The only time I have ever sold was I think 2016 pre lightning it took about 20 minutes I think. a run has occurred on several occasions price just goes down. That's why you need to be prepared to hold a negative position to get a big percentage profit eventually. The nearest we have seen to zero demand are exchange collapses .Not your keys not your coin. Exchanges are more efficient than P to P at transactions get in use them and get out.
