[haswell]

> Both cost time, which is finite and precious

As social animals who will eventually face the loss of every friend we've ever made, cultivating both a good network of friends and a kind of internal resilience is probably the best way one could choose to invest their time.

There are many very questionable ways to invest this finite/precious time, and most of us don't think twice about how much of it we squander (e.g. spending time online). There is a small category of things to focus on that is almost universally worth the effort: sleep, diet, exercise, social connection. Focusing on these things also tends to help establish that inner strength.