When I saw this was an 'aging' video I was expecting a depressing pretty-to-not transition. It was a pleasant surprise when she only got more beautiful as the series progressed. Bravo!

@TheFreak

Sloths aren't evil!

My guess is the "speed" in Speedflying is referring to the sensation of speed you get when flying so close to the ground/cliffs, versus being at high altitude where the terrain appears to pass quite slowly.

@ ant

It's doable, but you'd be giving the poor girls a lot more radiation exposure!

...Hehe, "radiation exposure"

I wonder how well it handles errors/mistakes in the start-up sequence. I'm sure you could cause some real problems if you went into one of these and started flipping switches at random.