I'd say he's in his 40's. He is a nuclear engineering professor. Really cool guy actually, so I'm not surprised he likes good games :D
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Definitely thinking about a minecart superhighway! :D
For now I turned all the cobblestone back into clean rock and built a freaking massive castle out of it...
http://img839.imageshack.us/img839/8103/mc7m.jpg
http://img411.imageshack.us/img411/5366/mc5w.jpg
Holy crap!
Did you do all that by hand?
you should post your world for others to check out.
Wow, that's a hell of a lot more impressive than what I've been doing.
I hit bedrock at the bottom of my staircase, and I've been systematically digging out all available "diggable" materials, and replacing it with glass. So in the areas where there is a break through the bedrock to the sky, you can see it. It also gives me an indicator of day/night when I'm down in the pit, digging away. Costing me a ton of time harvesting sand/wood to feed my 5 furnaces though.
I tried powering them with lava, but it got too expensive in iron for buckets. I've now got a farm of trees. My original farm was too close to my lava moat. It kept catching on fire.
Been cranking out a bunch of placed lights to have them all turn to lanterns after the update.