I'll rephrase my point then; I think Less Wrong people spend a lot of time trying to figure out how many angels can dance on the head of a pin. Or: They should stop sniffing their own farts, pull their heads out of the clouds, try not to get lost up their own asses, etc.
Anyway, according to Wikipedia: "Some mathematicians and historians, such as Carl Boyer, hold that Zeno's paradoxes are simply mathematical problems, for which modern calculus provides a mathematical solution.[6] Some philosophers, however, say that Zeno's paradoxes and their variations (see Thomson's lamp) remain relevant metaphysical problems.[7][8][9]"
So it seems like a few people are still wasting their time with this.
Turns out the answer is math ;) more specifically stuff which didn't exist back then.