I could lecture you on the adiabatic contours of the Otto cycle engine. I have a degree in this shit. That does not mean you need to know what I know in order to check the timing on your car's motor. There's an admirable pragmatism to knowing enough to solve your problems, knowing enough to tell when your out of your depth, and knowing that knowledge beyond these two milestones is only worthwhile if it interests you. I agree with cgod on registry hax. There is no part of my brain that is rewarded with knowing the structure of Windows metadata. I'd rather use the computer for what I bought it for, thanks. I once had to install Knoppix and a brand new motherboard in order to reassemble a 4-disk ZFS RAID5 cluster in man-down formation in order to resurrect my photos. I pulled it off. I got my photos. And fuck Knoppix, fuck ZFS, fuck RAID5 and fuck "finding that out" when I got my damn photos. That shit is tedious, yo, and my life is not enriched one iota by delving into the intricacies of sudo calls.