It is interesting to me that so many are hung up on form factor. It is like is has gotta look like a traditional NYC or London subway train (complete with gum s

It is interesting to me that so many are hung up on form factor. It is like is has gotta look like a traditional NYC or London subway train (complete with gum stuck under the seat I expect) or it can't possibly be any good. It should just be about speed and amortized cost per unit distance.