[elijaht]

Agree it’s efficient, don’t agree that an untrained person could unbrace double bodyweight.

I weigh 90kg and can squat ~190kg. Having that much on my back feels HEAVY. I think if you haven’t built up to it before you will not be able to do that

[bluGill]

It will feel heavy, but you are not lifting it more than a few cm (and at the point where your body has the most leverage).

Remember the point is most humans couldn't get the weight there, but if somehow it already was they could hold it. That isn't a useful thing to do so we rarely test it.