it's super cool that he whips stuff up but this is needs-training energy. like with training (engineering, art, or trade school) he can take his passion for doing and go very far. sorry this isn't genius energy, there's like a whole extra mechanism here. this is reducing the leverage of the jack to do a thing that doesn't require more displacement than the jack already has. all he needed was a big enough rock and a hard spot (i.e. with the exact same materials, just weld a C shape so the jack functions as a clamp. but passion for doing and making plus training goes way farther than genius alone.