I am curious what people think are activities that are described as "a waste of time." I know there are many. One of them, to me, is spending time in discovery of who people are by identity. Oscar Wilde once said, "Be yourself; everyone else is taken."
I take that as wise advice. The best person anyone can investigate is themselves. Who else is as important? If one is investigating another at the expense of knowing, for example, how to research a debate proposal to see if it a good fit with their body of knowledge and ability to argue with that body, which would be, after all, a good exercise to challenge the self, and to accomplish a bit of self-discovery in the process; to do otherwise is folly. A waste of time.