Twikes seems a little too hi-tech for me as well. I don't like things I can't feasibly re-create. Plus it's only 25% human powered. Neet for show, but i wouldn't want to live there. I'm still wondering about the multiplication of human power. If they've made multi-person vehicles, why can't they go faster?? Too much wind or weight resistance?? I'm thinking of the pully effect, being able to lift hundreds of pounds with one simple and ordinary tug.