I beleive it is just a Peter's principle scaled out to the entire market. Substandard performing engineers are not getting promoted on their jobs and leaving fo

I beleive it is just a Peter's principle scaled out to the entire market. Substandard performing engineers are not getting promoted on their jobs and leaving for another, less tech savvy companies where their skill level is good enough. In the end everybody are just burning the investor's money, inflating the tech bubble.