up:: Habits MOC - Gather

The truest habit metaphors are additive - v1 §

There are two metaphorical ways to talk about habits: additive and subtractive.

Subtractive When you repeat the same action, it’s like walking the same path: eventually a trail forms. ¹

Additive When you repeat the same action, it’s like adding another strand to a string: eventually that string becomes a rope, and that rope becomes a cable.

I say additive is the truest metaphor for habit formation because that’s what is happening in the brain. Actions cause specific neurons to connect. The more they connect, the more efficient they become at connecting. This is through dendrites growing spines. For more, see The neural formation of habits is additive - v1.

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Footnotes §

1. As I return to this old idea, I’m struck with a contradiction. While the terrain wears away (subtractive), the speed of travel increases (additive). So if the point of reference changes from the terrain to the traveler, even the subtractive example contains an additive component. 2020-05-27 ↩