My guess is you have no idea what you are talking about.
I’m writing from a faang office with a few decades of experience. I know some people in aerospace. They’re on average smarter than 4/5ths of my colleagues (who are also clever).
For one, I anecdotally know people in FAANG who were smart by effectively “studying for the test” by focusing more on leetcode than projects/intellectual exploration. In contrast, the people I know who went into aerospace tended to have a genuine interest in physics (and some with more interest in philosophy), and had more experience with projects (e.g. worked on an aerospace team in university), with many of them having little-to-know experience with software development.
Interestingly, the aerospace people I know anecdotally happened to be better at soft skills/networking for getting into companies, whereas the FAANG people focused on leetcode for admissions. After getting into a company, also from my anecdotal experience, more FAANG people focused on metrics/compensation, whereas more aerospace people tended to focus more on the mastery of the craft. I acknowledge that my anecdotes shouldn’t be generalized, but it aligns with the motivations of many people looking to get into each company (it seems more people go into FAANG for compensation/prestige, whereas more people go into aerospace for the passion).
So, I would say that people from both categories tended to be very smart at learning quickly and solving hard problems, though anecdotally, the aerospace people seemed to be generally more intellectually curious. Then again, perhaps the aerospace people were better at soft skills/presenting themselves so they appeared smarter, whereas the FAANG people didn’t focus on presenting themselves as intelligently. For limitations, note that the people I’m thinking of are at the junior level.
In any case, I don’t think one can conclusively say that people in FAANG have more/less/the same intelligence as people in aerospace companies, though maybe one can tentatively say that people who go into aerospace tend to be more curious and interested in mastery of one’s profession (versus material compensation).