If you want to head back and watch Cosmos 22 minute run:
http://cheerfulghost.com/jdodson/posts/1510/ocarina-of-time-speedrun-in-22-38-live-at-agdq201
I'm an Engineer and built the video game community Cheerful Ghost and text based mini-MMO Tale of the White Wyvern.
Hoooo-leeee crap.
That was incredible. And so much of it I didn't understand. But just incredible.