i've read a lot of blog posts about it, participated in a lot of arguments, but do you want to know the two things that actually made me a better (open source software/hardware) developer?
1. experience
2. not being in precarious situations where my living situation and to a lesser extent income feels like, or can, evaporate at any time, and not constantly being in the black-and-white states of mind that inevitably result from it
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@whitequark
if you don't mind, what do you mean by black-and-white states of mind? (ISTM that you are pointing at increased contrast/variance/things being always pegged but in different directions, whereas I'd expect less contrast and things just being pegged in mostly the same direction.)
@robryk yes, increased variance, with the mean shifting rapidly or not even being meaningful