THIS: > And for whatever reason a lot of people in startup/tech seem to have a huge Dunning-Kruger effect blind spot where they believe knowing a lot about one thing makes them an expert in everything. <

Its especially(!) very common for people who made an exit and are now "wealthy" - sure they can afford to have an oppinion on everything, but very often they are just talking bullshit, thinking: "hey, I made it in field X, so why do not try field Y".

Esp the "MBA crowd" is famous for this: For whatever reason they think they are more intelligent than ana engineer who filed a patent, e.g. (while most of the MBA bobos would fail just in acquiring all documents required for this)

Other example: If you wrote once a book and it got traction, even if you are not a proven expert you will be invited to television shows etc. (and MORE than the people who are real experts with proven track record)