Product management is becoming the new bottleneck according to @AndrewYNg "I don't see product management work becoming faster at the same speed as engineering. I'm seeing this ratio shift. Just yesterday, one of my teams came to me, and for the first time, when we're planning headcount for a project, this team proposed to me not to have 1:4 PM/engineers, but to have 1:0.5 PM/engineers. I still don't know if this is a good idea, but for the first time in my life, managers are proposing having twice as many PMs as engineers. I think it's a sign of where the world is going."