>>1330408Why wouldn't it be? Size matters a lot. It's not like an aero frame which looks bulky from the side but is actually just as slim if not more than any other bike from the front.
I don't have a wind tunnel but here's a very simplified area calculation. This is something that surprises children and idiots but a small change in diameter can almost double the area of a circumference. In this case a Gyro Aeron would double your head's area assuming you're looking down as you should.