[qbasic_forever]

You do the same thing with prusiks to ascend a rope. Here's an example of a practical application, getting out a crevasse when climbing glaciers: https://www.youtube.com/watch?v=px_m3qzHYTA

In an alpine scenario you'd descend by rappelling. I doubt folks in a home want to setup a munter hitch or similar though. :)

[goldenkey]

I hope I never have to use this. Knowing myself, I'd typo the knot and fall to my death.

[fingerlocks]

This is how it’s taught in intro mountaineering courses. In the real world experienced alpinists carry a lightweight ascender, like a Micro Traction or similar, that can also be used for other tasks like hauling or fall protection for simul-leading.

[goldenkey]

Is that essentially a one way rachet? All you need to climb easily is prevention of regress and maybe some mechanical advantage, right?

[sandworm101]

It is a bit more complex. Climbing means falling. The 'ratchet' needs to work under shock loads. And wet/ice ropes radically change the friction numbers. There is a reason why climbers, experienced ones, know and use a great many different tricks for accending and decending ropes. A "big wall" climber can make a belay device out of almost anything, or even nothing.

[hprotagonist]

like your hip!

“The leader must not fall.”

[qbasic_forever]

Aid climbing: https://en.wikipedia.org/wiki/Aid_climbing It's using techniques like that to go up rock walls instead of free climbing the rock holds.

[fingerlocks]

Yes

[JKCalhoun]

I see. I tried to watch one video but they spent most of the time explaining how to create the rope/knots. I had assumed you eventually resorted to your arm strength to ratchet up the line. It does look like standing to ascend.

[ricardobeat]

The overdubbing in this video is creepy, like these auto-generated voiceover videos. Why show peoples faces over completely different narration?

[MauranKilom]

...because they didn't narrate in English?

[Avalaxy]

Subtitles are a thing