[smsm42]

It doesn't really qualify as "really good" (I'm not - I know people who are and they are way beyond what I can do, I mean light years beyond). It's just a set of basic tools about how to approach problems. Like when programming you don't have to have library function for everything - you learn to write your own functions, etc. You don't have to be able to write your own OS (though some people can) but going beyond clicking buttons in Word is not a bad idea.

Of course, I do not see it as "gaming" - I see it as learning the right way. IMHO, all learning should start with that and formula should come after - as a shortcut, which you can take but you know if needed you could do it from scratch because you understand where it comes from.