[The Prof chuckles with him.] Good luck with that.

[But there's a glimmering of an idea taking form in his head. It feels familiar, like something he must have thought about at some length before, though he couldn't say exactly when.]

But you know, honestly... I'd be surprised if the horse isn't obsolete in another twenty years or so. You should see what they can do with electric motors nowadays. Give it another twenty and your wagon won't even need wheels.