That's up to you, but if there is a crash it's very unlikely to be before a major hyperscaler decides to reduce or stop their infra expenditures (which isn't happening, like, quite the opposite). That's what I would personally see as the top signal, but it's pretty dumb to exit the whole market because of a possible crash at some point in the future, without anything you see as a catalyst. Also, gold is completely overrated, it's not at all a safe place where to put your money and you have no idea how it would correlate with an AI bubble burst