"Knowing you, I'm fully expecting to see a place filled with flying carts," look, Inigo is not quite used to the concept of cars yet, let him imagine some weird cyberpunk medieval future, "and streets that do all the walking for you. Surely you can invent that much in the time it'd take me to come over!"

Senku is so incredibly big-brained, after all. Inigo is mostly joking, sure, and that's shown by the smile on his face. But if Senku genuinely pulled it off, he wouldn't be surprised either. That sounds just like him.