The warnings are well deserved. Failed to review the first time... this story deserves more reviews. Also... all the other characters are begging for explanations as to how each of them escaped from their levels.

Mind blown.
Well done.

Minor criticism:
(From the POV of the story, you absolutely needed tons of fanfic cameos, but I still wish there had been a more succinct way of including them without so many one-line appearances. Could maybe have made for a shorter story with the same impact. The result was still awesome, though.)

That was surprisingly beautiful

Not sure how this only has 25 reviews, it's incredible. Well done.

I have one thing to say:
WHAT DO YOU MEAN IT WASN'T MADE ON CRACK!
:D

Down the rabbit hole, eh?

Probably not a lot here you haven't already heard, so I'm just going to note that having the Second Sorcerer's apprentice along makes perfect sense and also says worrying things about certain patches of the multiverse.

(Also your Doctor just cracks me up...)

Wow, this actually is a memetic hazard. I thought the description was an exaggeration... this is fic truly worthy of a one-boxing, AI-boxing, genius. I swear that wasn't sarcasm.

Well, that wasn't so much the finale as "the end of one of the middles", but pretty neat all the same. To say much more I'll probably have to reread a few times.

Full disclosure: I found the Jehovah reference rather jarring in what was so far an enjoyable romp- but it got back on track, and the Squirrel Girl reference was still pretty funny, so what the heck. (Let's just say we have different outlooks on certain topics and I just came here to read an entertainingly bizarre crossover. Which I did.)

"Tvelve! Tvelve vorlds! A-ha-ha!"

genius.

Out of all the gin joints in all the world(s), you brought Jake Stonebender from Callahans. Not Mike! Who is evidently also a god now that I think about it...but Jake. Thank you. I bow in your general direction. :)

Really enjoyed this (relatively) short read. Surprised it doesn't have more reviews. I'd ask you to write more, but I understand that this kind of story can be difficult to keep going. Easy to lose reader interest with that many characters running around, and difficult to get or keep any kind of plot.

For what it's worth, I think you ended it very nicely. The last sentence pulls does a superb job of pulling things together.

I also didn't realize that you were the author until after I had finished reading. I've been reading MoR for a while, but I was brought here by TV Tropes Mega Crossover page. I don't understand why you have two different accounts on FFN though.

This should've been the real ending to Permutation City. Top notch.

Also: I don't know who the character with the shaved head is, but the 40 percent of neutrinos thing is a property of Scrith from Niven's Ringworld series.

The memetic hazard warnings were WAY overblown. Also, the author has clearly spent too much time thinking about Solomonoff induction, and is beginning to take it too literally (it is, after all, only a formalism).

Thank you! More so than HPMOR, this story makes me realize I am not alone. I also hope to transcend / move up a level, and the overlap between people who have this ambition and people who use enough technology to have a non-negligible chance of succeeding is small. I think I want to feel safe in this Universe, even though that would be boring. Anyway, good luck with your quest.