[AndrewC]

Now all you have to do is show that designed roads are the only way to get from here to there, and you're all set.

No. It is for you to show how randomly tossing asphalt into the air results in highways.(first get the asphalt)

[general_re]

If asphalt highways were the only way, you'd have a point, but the fellow I posted earlier doesn't need highways, and he wouldn't know what to do with one if you showed it to him anyway...