The real question is "why not?"
I find Tedd's overly precise numbering in panel one amusing. It's rounded to the nearest hundredth but I'd say that .37 is something most people would leave out. For those of you who have forgotten, or not read, certain previous commentaries (for SHAME), that number is the result of calculating the cubed root of 0.5, AKA 50%. There are three dimensions, so you have to figure out what three numbers multiplied together wind up equaling 0.5 to get what size they'd have to shrink to in order to be half as big.
But that's all essentially recap. This comic is tangentially the result of me thinking about one of the reasons I like "to scale" figures, which is I like seeing what that scale would be like relative to me in real life. 1:8 and 1:7 scale is common, which would actually be about 0.2% and 0.29% normal size, respectively. Thos numbers look ridiculously small, but that's what you get when you cube 1/8 and 1/7. Yikes.
1:2 scale, incidentally, would actually be 12.5% (1/8) normal size. Neat!