My love for this video knows no bounds. This is the product for you if your bicycle is too compact, has too small a turning radius, or doesn't take up enough space in your garage. Or if your treadmill is too convenient to entertainment options, doesn't require you to put on enough protective clothing, or doesn't put you in the position of potentially being hit by a car.
This was sent to me by a friend who actually sent me to this page, where a lengthy discussion ensues in which nerds argue over whether it is, in fact, a ridiculous concept. They laughed at the Wright Brothers too, you know.