“When you think about it, the true cost of meetings
is staggering. Let’s say you’re going to schedule a meet-
ing that lasts one hour, and you invite ten people to at-
tend. That’s actually a ten-hour meeting, not a one-hour
meeting. You’re trading ten hours of productivity for
one hour of meeting time. And it’s probably more like
fifteen hours, because there are mental switching costs
that come with stopping what you’re doing, going
somewhere else to meet, and then resuming what you
were doing beforehand.”

Jason Fried & David Hansson, Rework