There are an almost unlimited number of things to figure out in modern life. IMO, it's not reasonable to judge someone for selecting which ones are most importa

There are an almost unlimited number of things to figure out in modern life. IMO, it's not reasonable to judge someone for selecting which ones are most important to them. The important thing is to know it is possible if you had to -- it's just persistence. That said, if you wanted to pick one thing, computers probably have the lowest cost-to-benefit ratio of figuring stuff out, at least at the proxy-settings level of detail. I know how to change the oil in my car, but I can't do it much cheaper than the nine minute lube down the street, and it takes me four times as long.