> A corollary is there's a limit to what you can effectively care about.
In absolute terms, maybe, I'm not sure.
But in relative terms, by definition, there is a limit to what you can care about.
Care more about your job than your kids, that's a problem.
Care more about your friends than your spouse at a time when they need your support, that's a problem.
A big part of what makes us geeks is caring too much about the wrong things (according to normals anyway).