This reminds me of the first King's Quest game. (I animated #4, and so played the earlier ones to get a feel for them.) The character has to climb a rock wall, and his movement was pretty realistic for pixels the size of bricks. I reached for the mantle move just at the lip of the cave... and fell to my death. I, the human, would have made that move, but the game character couldn't. Pity. The reach is helpful, but I've been astounded at the strength shown by shorter partners. One of the guys I climbed with was a volunteer fireman and EMT who easily swung his 300# telescope onto his truck. The shorter muscles just have more mass or something. OTOH, I had no problem stepping 4' across a wall onto a "chickenhead" (the feldspar crystals in the high country can be conspicuous). We should all be glad of what we can do. Meanwhile, it is getting close to dawn and my bedtime. :)