Words are intended to cut up the world - this is how they get their meaning. If you’ve taken these words to apply to everything in the in universe, you’ve rendered them meaningless, which is not the intention. Projectiles are subject to quantum effects but you can model their behaviour classically perfectly well. A charitable reading would be something like “to model the operational behaviour of the brain, classical mechanics is insufficient”.
"Whatever it is" == the same neurophysical/genetic factors that cause high development of "STEM" intelligence is associated with inability to process social cues in a dynamic fashion, somewhat related to high function autism. A great preference for clear classification that is not self-contradicting.
There are plenty of spaces that have the type of people the thread is describing and yet almost none of them have the type of behavior that the audience of this website loves to exhibit.
I’m sorry, but your projectile example is just terrible. We’ve known for decades that the proper functioning of many (most?) enzymes depend on quantum effects. Your body would just break down otherwise.