Ok so from what I can understand about rope and pulleys (without being to scientific) if a rope is run around a pulley, it will effectively double the capacity or halve the load on each strand. A quick qoogle search suggests that the single strand is under friction/compression etc so doesn't take the full load. Probably not doing a very good job of explaining but I'm sure you'll know what I'm trying to say lol.
Ok so...
Silly question maybe
Silly question maybe
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