People who design and build Rube Goldbergs just for fun are (if successful) necessarily clever; very, very few of them believe that the resulting machines are actually useful in any meaningful sense, I think, so there would be no grounds for considering them foolish.
When you fully explain your bright/intelligent distinction you should also include a list of synonyms and antonyms for each. It seems like you’re using “foolish” as an antonym for one and not the other, “brainy” as a synonym for one and not the other, etc.
I just didn’t address them.
People who design and build Rube Goldbergs just for fun are (if successful) necessarily clever; very, very few of them believe that the resulting machines are actually useful in any meaningful sense, I think, so there would be no grounds for considering them foolish.
When you fully explain your bright/intelligent distinction you should also include a list of synonyms and antonyms for each. It seems like you’re using “foolish” as an antonym for one and not the other, “brainy” as a synonym for one and not the other, etc.