1) It's not just engineers and software developers https://en.wikipedia.org/wiki/Planning_fallacy#Empirical_evidence https://en.wikipedia.org/wiki/Planning_fall

1) It's not just engineers and software developers https://en.wikipedia.org/wiki/Planning_fallacy#Empirical_evidence https://en.wikipedia.org/wiki/Planning_fallacy#Empirical_evi... 2) Musk is particularly bad about it & does it in places that directly financially benefit him. Telling people that if they fork out 15k now they'll have full self driving in X timeline, completely missing it and then doing the exact same thing for years on end seems less like the planning fallacy and more like fraud, but I guess we can just wait to see what the courts decide on the matter