It is impossible to be committed to anything—professionally or personally—without the discipline to say no to all those other superfluous things. An interview request. A vibrant social media presence. A glamorous dinner party. An exotic trip. A lucrative side venture. An exciting new trend. No one is saying these things won’t be fun, that they don’t have potential benefits. It’s simply that they also carry with them opportunity costs, they require resources and energy that each person has only so much of.
