This does not apply to bitcoin, however many alt coins have hash rates low enough that 51% attack is possible at any time of the day. Nobody cares as long as th

This does not apply to bitcoin, however many alt coins have hash rates low enough that 51% attack is possible at any time of the day. Nobody cares as long as the price keep going up and the true degree of security is determined by the ~~casinos~~ exchanges they play at.