Volume 1 · The Machine Between the Ears · Essay 179
Linearity Bias
The mind loves straight lines: effort in, reward out, in steady proportion. Double the hours, double the result. It is the default picture — and almost nothing in the world actually works that way.
Look around. Learning a language: fast at first, then a long plateau. Exercise: dramatic early gains, then grinding inches. A business: years flat, then a bend upward that looks sudden and was not. Reality is curves — thresholds, plateaus, compounding — and the mind keeps drawing rulers over them.
The cost of the bias is quitting at the wrong place. On the plateau, the linear mind concludes "it's not working" — exactly where the curve was about to bend. Most abandoned projects died not at the hard part but at the deceptive part.
So before quitting anything, ask what curve you are on. Plateaus precede breakthroughs; slow beginnings precede steep climbs. The straight line is the exception. The curve is the world. Plan for the shape of the thing, not for the shape of your hope.