Rats learned to drive

Maybe it is hard coded in sentient beings to enjoy moving at speed with very little energy expenditure. To quote C.S. Lewis in the The Last Battle-

“If one could run without getting tired, I don’t think one would often want to do anytrung else?”

As a runner, I agree. :)

Birds who can soar for hours on end with thermals won evolution as far as I’m concerned (they have befriended the spirals)

I do regular running, and sometimes it's just pure joy.

I've seen frigate birds taking off at sunset, flying around a bit and then going back to their nests - pretty sure they were just enjoying the experience :-)

Ugh this should have said “anything”, I can’t edit it now. You guys get it.