+1 to this. I feel like a lot of the time the "focus time" blocks in their calendar are just because they can't be bothered to deal with meetings or talking to

+1 to this. I feel like a lot of the time the "focus time" blocks in their calendar are just because they can't be bothered to deal with meetings or talking to others - basically they just want to do the parts of the job they like (code or whatever) and to fuck with the bits they don't like. "Sorry - can't do that planning/bug triage/training/mentoring/interview session - I am in my focus time" When you get to the more accomplished/senior levels of impact, it is all about scaling your skills - i.e. using your skills and knowledge to accomplish more than just one person can do on their own by sharing knowledge, helping others etc, leading a team/teams in the right direction and so on. Locking yourself away so noone can talk to you for hours/days at a time are the hallmarks of a selfish engineer (or at the least a very junior one who doesn't yet realise their place)