User blog comment:DrCeasium/new hyperfactorial array notation/@comment-5150073-20130416230152/@comment-7484840-20130417061311

(note to self: don't rush these things, or they just blow up in your face). I'll sort them out soon. Btw, the radius or the observable universe is about 46 billion light years. (due to it expanding, by the time the light reaches us, the space it was going across expanded and the thing it came from moved further away)