"And as always, even if you have identified a bubble, trading profitably on this is subject to the efficient market hypothesis." Timing is hard in the short ru

"And as always, even if you have identified a bubble, trading profitably on this is subject to the efficient market hypothesis." Timing is hard in the short run, certainly. However, if you believe you have identified a true bubble, it seems wise to scrutinize long term commitments requiring outsized returns from the underlying asset? Practically, this would mean not tying your career to bubble technologies; not settling down into a bubble-priced home-cum-retirement nest egg; etc.