Not really tech death, but close enough that I thought it'd be good to cross-post.
Guide to the song from the youtube comments:
0:00 the random intro
1:32 earrape
1:54 I THIS FRACTAL ILLUSION
2:54 lead over catchy riff
3:33 the not so catchy but more meshuggah riff
4:31 THIS IS AN ANOMALY
4:56 "Tight as frog butthole" (c) Ben Eller
5:39 Chaos cranked up to 11
6:18 RE-DESINTEGRATION
7:07 string skipping... kind of
7:46 unsettling clean theme 1
8:39 brr da brr da da brr da brr da da
10:15 from chaos to chaos to chaos
10:32 brainmelting 4/4 riff
11:31 waaa weee wooo trem lead
12:00 I - THE NIHILIST
12:39 contacting aliens like Fredrik
13:31 MIRACLES INVERTED
14:06 0s longer than grindcore songs
14:42 unsettling clean theme 2
15:59 winding up the djenerator
16:51 djenerator at full power
17:45 CONCEPTION DERIVED FROM MISCONCEPTIONS
18:20 EMERGENCE OF DOOM COMPLETE
18:35 IIIIIIII
20:19 eternal 0
Also a good interview where they talk about the track:
Did you guys ever do I live?
No, no. That whole track was written and recorded just on random. Me and Fredrik would just jam on something, and when we found something that was kind of cool, he would walk into the control room. I would just record drums and it wasn’t a set pattern, I would just kind of stray away from the pattern, but just keep going in that vibe. Then we had to chart everything and go bar by bar to record the guitars afterwards, because it’s all just random.
In doing it that way it’s also really, really hard to learn it. Even for us. I know parts of it, just because I’ve listened to it a lot, but it would be an awesome challenge to try to pull that off live, and it would take a shitload of rehearsing to get it down.