This post solves all of the easy problems (i.e. make simple stuff go fast) and none of the hard problems (i.e. build a system that still works when other stuff

This post solves all of the easy problems (i.e. make simple stuff go fast) and none of the hard problems (i.e. build a system that still works when other stuff breaks). This post is perfect world thinking. We don't live in a perfect world.