About a third of Newton's surviving manuscripts deal with physics. The rest deals with esoteric biblical exegesis and alchemy. Just another dumbo, I guess.
Not a dumbo, but such a massive waste of talent. Nobody would care to remember Newton's name if that wasn't for his work in physics. T. Acquinas is a another example - an extremely intelligent person who wasted his life on a word salad that can now be generated using chat GPT.
The birth of physics was very interesting. It was full of people discussing how the heavens and Earth follow the same rules while in one room, and then doing astrological predictions to pay the bills in another room.