Thor couldn't help the same confident smirk on his face as he often had when boasting about a fight or telling a story. Senku was a madman, clearly, but he was also absolutely brilliant and Thor wanted to see this through. Everyone had a role and if Senku's was to be the thinker, the designer, then Thor would happily be the muscle and the battery. He wasn't totally ignorant, after all, even if his biggest strength was... well, his strength.