I’d argue given enough time and effort almost anyone can become a domain expert in specific things and do incredible stuff. What distinguishes smart people from simpler folks usually boils down to them having a very easy time processing new stuff, which includes the ability to filter noise and fact check. I don’t like the term “stupid”, but there hasn’t been a whole lot of evidence supporting the idea that human intelligence is compartimented. Humans with high IQs tend to outperform in average at most of what they try. Low IQ probably means you will work harder and have to specialize to achieve the same degree of competency. This just my hot take, I’ve fallen into this rabbit hole before and read a lot on the origin of IQs tests.