Our wonderful, complex, modern world provides myriad opportunities. And so, of course, it presents us with many thousands of choices to make, and just as many opportunity costs. Unlike 99% of everyone who ever lived on this planet, you can take a glowing rectangle out of your pocket, tap it a few times, and have food delivered to your home within a day or two. We should pause to notice just how astonishingly wonderful this is. But we should notice too the opportunity costs. For example, barring a zombie apocalypse, most of the people reading this post will never learn to hunt their own dinner. OK, maybe that’s not important…