Note that “best arguments against worrying about AI risk” and “best arguments against entering the AI risk field” are distinct issues. E.g. suppose that AI risk was the #1 thing we should be worrying about and biorisk was the #2 thing we should be worrying about. Then someone who already had a strong interest in biology might be better off entering the biorisk field because of the higher personal fit:
… the most successful people in a field account for a disproportionately large fraction of the impact. [...] Personal fit is like a multiplier of everything else, and this means it’s probably more important than the other three factors [of career capital, altruistic impact, and supportive job conditions]. So, we’d never recommend taking a “high impact” job that you’d be bad at.
Note that “best arguments against worrying about AI risk” and “best arguments against entering the AI risk field” are distinct issues. E.g. suppose that AI risk was the #1 thing we should be worrying about and biorisk was the #2 thing we should be worrying about. Then someone who already had a strong interest in biology might be better off entering the biorisk field because of the higher personal fit: