In my career, I have met exactly one short fat engineer with >5yrs of exp that I was impressed by. That person is now a Product Manager at a FAANG company (albeit PM-ing highly technical stuff). I bring this up because I think there is a very good analogy to the point that the author is making and the distinction between PM and Engineers. Broadly put, PM's are good at figuring out the theta, and Engineers are good at…
When I tell my friends how I feel about my knowledge and expertise they say I am only suffering from imposter syndrome. May be with more years I do become really good at one or two things.