I'm really tired. Does low-voltage electric resistance heat actually make sense? Under the right circumstances, it seems like it might. I see the people from Step Warmfloor at Greenbuild every year, but I never talk to them — frankly, because I have a bias against the concept of their product. This year, I talked to them. And now I have to admit that I'm a little bit confused. Would anybody be willing to take a look at their pitch and either talk some sense into me or tell me that I'm not entirely nuts?