There are only 24 hours in a day, and so many days in a lifetime. Everyone is always trading time, since there is a very limited amount of it.
Even in a leisure situation, such as a party, people are going to make choices about how much time to interact with (or not interact with) certain people. Or spending time pontificating on HN.
Even in a leisure situation, such as a party, people are going to make choices about how much time to interact with (or not interact with) certain people. Or spending time pontificating on HN.