Take 3 sheets of paper.
Wad one up in a ball.
Fold one up, just like you would flake a spin.
Leave one sheet alone.
Now smooth the ball out and lay it on the unfolded paper.
Now smooth the flaked paper out on the unfolded paper.
Which piece smooths out closest to it's original size...
Do this 100 times, which piece falls apart first...
I was told this example, but it went further than that...
Hold the 4 corners of the paper (you'll need a mate to help) and then drop a heavy ballbearing into the middle.
Does the crumpled one tear? Nope; does the folded one? Yes
IF you fold in the same place, you make certain points very weak because they are folded in the same (or similar) place many times. Stuffing it in the bag creates more folds, but they are smaller and more distributed and so the weakness is more spreadout.
