Maker's Schedule, Manager's Schedule by Paul Graham

Paul Graham argues that programmers and other makers dislike meetings because they run on a different schedule from managers: makers need blocks of at least half a day, while managers schedule in one-hour slots. He says a single meeting can break a maker's afternoon into pieces too small for hard work, and can also dampen their willingness to start ambitious projects in the morning. Graham describes Y Combinator as operating on the maker's schedule while most investors use the manager's schedule, and says it handles founder meetings through clustered office hours at the end of the day. He says the speculative meetings common among managers are costly for makers, and asks that managers understand that cost.