Usually the layers are just out of synch and taking the top layer over the top will put all back in order. Randomly, I remember seeing this explained on a kids TV show possibly decades ago.

Fix out of synch toilet paper.

A remarkably common pattern for the evolution of many things. You see it all the time in the evolution of technical things, but also many systems in general.

When you start to reach the top of the limits of what one system can do you’ll start to see a focus on efficiency, cost reduction and small improvements and optimisation. This is great because it forces a new creative solution to arise in order to make any real progress. An image search gives a few examples.

Also, see some related sketchplanations: The long nose of innovation, designing for adoption, understanding the chasm.

The S-curve.

Unless you were a maths, physics or Greek major, chances are your knowledge, like mine, may not have gone much farther than epsilon. I like how the letter names and shapes map or don’t to the Roman or Latin alphabet.

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