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Fair point, but... Reducing friction is a factor only in the real world...in a theoretical sense, which is the only way we'd ever actually achieve a true 2:1 or whatever MA you want to talk about, it is not considered. And it only confuses the issue when trying to explain the concepts of MA.

Back to simple systems. Try this: a moving pulley requires twice as much length of rope to be pulled for the distance the load moves, right? This is just an example of leverage. Another example is a lever, and most can see how those work...the closer the fulcrum is to the load, the easier it...

Here's some examples of compound pulley systems, what Bounce is calling complex MA. I stole this out of ON ROPE.

Another way to consider it is using the example of our DRT climbing system. I think we all know, if not understand why, that we have (taking friction out of the discussion) 2:1 MA in that system, allowing us to lift ourseves into the tree by only pulling one half of our weight aloft. But we're...

As someone recently posted, "I can explain it to you, but I can't understand it for you". :D

Yup.