Originally Posted by GhostRider62

I am not making that point, sitting still isn't very fast.

Think of it this way, you get your biggest bang (time savings for energy output) when the forces are linear against you.

When you are going very fast, it takes a massive effort to go just a little bit faster. The gains are harder and harder to achieve as the speed increases. When you are going slower, it is easier to make improvements resulting in shorter times or alternatively, you can ride just the same speed with lower power levels. If you are going 5 mph, a 10% increase in power will get you 10% increase in speed. At 30 mph, that same 10% increase in power will only yield about 3% increase in speed. Where aero losses really mount depends on the rider/bike combination but it is lower than many assume....maybe 15 mph