Earlier quoted context omitted.
There was an amusing short story called "The Road Not Taken" about that. In it gravity manipulation technology turns out to be really simple. It is something every civilization (except one) discovers early, like before they reach what on Earth would have been medieval technology level, and then all their technological development is focused on their gravity technology. The one civilization that somehow missed gravity…
>So when the alien invaders arrive with the FTL ships and release their conquering armies...our automatic machine guns and missiles and tanks and bazookas and such totally outmatch the aliens troops who have flintlock rifles and black powder. That doesn't even make sense. Why would having simple gravity manipulation stop progress on the development of other technologies, particularly weapons? Especially if, as it see…
It’s kinda like asking - why have some of the world’s brightest minds spent the past 20 years trying to get people to watch more ads? What else might they have achieved or discovered instead?