Originally Posted by Jeff Kirvin

OTOH, they called it "bleeding edge" for a reason.

There's an old saying that goes back to the dawn of the jet age, "pushing the envelope." The idea is that if you chart a graph with altitude on the vertical axis and speed on the horizontal, test pilots were always trying to get to that upper right corner, faster and highter than anyone else. What no one wanted to talk about is that this was also where the postage gets canceled.