For serious discussion of the controversies, approaches and enigmas surrounding the origins and development of the human species and of human civilization. (NB: for more ‘out there’ posts we point you in the direction of the ‘Paranormal & Supernatural
’ Message Board).
The only reason I'm jumping into this stuff is because I've built a few interesting systems for clients in the past that used 2, 3, and 4 to one systems of built in cable/rope and pulley systems, and I love that stuff. I also rock climbed for years and have climbed Yosemite's El Capitan and Half dome among others around N America, so I have spent alot of time fixated on the capabilities and wear concerns about ropes and force factor falls. So I'm getting some red alert instincts on any systems that have a friction of rope on non rotating systems. There's even considerable wear on the internal rope itself from rope on rope if its being squeezed together over a surface, while tensioned to an extremely high and vulnerable point. Under high tension, just the outer radius of the rope itself run over an arced surface is experiencing incredible stress to the rope fibers, which has nothing to do with any make shift lubricant.
I just think these kinds of mental experiments don't scale very well to the extremes of the size of blocks discussed in this topic.