alt Hacker NewsThis is a framing issue. You can't control the times, but good advice is applicable in good and bad times. If Hamming was operating from a "good time", it should be true that his policies are also applicable in the "bad times".
His advice to "work on the worlds hardest problems" was spoken to people who had worked their way past the initial difficulties. General advice to "Move towards important problems", which is precisely the same thing, applies in good and bad times, and is very likely to produce in you a valuable expertise.
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It's not about good or bad times. All compasses are broken so any particular direction you believe you are walking deliberately might as well be uniformly random.
"Direction" and "design" are probably the wrong metaphors for careers.
Personally, I find the advice useful. Most who provide a framing for causes of success either do not place it in relation to anything, or relate it primarily their own situation, and their argument becomes susceptible to interpretation as survivorship bias. Some try to extend their argument to cover more cases, but can be seen as overconfident based on limited experience. It's hard for one writer to "prove" what general success rules are.