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Why friction is necessary for growth

(jameelur.com)
158 points WanderingSoul | 1 comments | 29 Sep 25 13:39 UTC | HN request time: 0.2s | source
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boilerupnc ◴[29 Sep 25 15:23 UTC] No.45414978[source]▶
Related: Wolff's Law

"bone in a healthy animal will adapt to the loads under which it is placed.If loading on a particular bone increases, the bone will remodel itself over time to become stronger to resist that sort of loading. [...] The inverse is true as well: if the loading on a bone decreases, the bone will become less dense and weaker due to the lack of the stimulus required for continued remodeling."

[0] https://en.wikipedia.org/wiki/Wolff%27s_law

replies(2): >>45415050 #>>45416694 #
flux3125 ◴[29 Sep 25 15:29 UTC] No.45415050[source]▶
Same for muscles
replies(1): >>45415206 #
dijit ◴[29 Sep 25 15:42 UTC] No.45415206[source]▶
Same for brains
replies(1): >>45415219 #
sunlightteacher ◴[29 Sep 25 15:44 UTC] No.45415219[source]▶
Hebbian learning
replies(1): >>45415365 #
1. chrisweekly ◴[29 Sep 25 15:57 UTC] No.45415365[source]▶
Yes!

Hebbian theory is a neuropsychological concept that explains how synaptic connections between neurons strengthen when they are activated simultaneously, often summarized as "cells that fire together, wire together." This theory, introduced by Donald Hebb in 1949, helps to understand learning and memory by illustrating how repeated experiences can enhance neural pathways.