"You shouldn't work long hours" is consensus advice masquerading as contrarian advice. You can see this for two reasons: (i) count the number of people in threads like this who advise against working long hours; (ii) go to Amazon.com and count the number of books that advocate (often using empirical evidence) against working long hours. The same is true for "you shouldn't multitask". Everyone thinks they're clever fo…
Someone I read suggested (specifically regarding Musk), it's a productive state of hypomania, that isn't full-blown mania.