So the first thing that jumps out at you, if you've been following the other guest week comics, is that Randall did not re-draw the traditional Dinosaur Comics panels in his own webcomic's style, as the other four did. I was actually really looking forward to this, but apparently he was perfectly happy to just type some words into the ordinary template and hit copy and paste and resize and bunch of times.
This is a tiny point that probably only bothers me, but - it really irritates me that T-Rex refers to telling a "dinosaur comics story." None of the characters ever refer to they are in a comic so it doesn't sound like "T-Rex" as much as "Some dude impersonating T-Rex" but since no one else probably noticed this I'll move on.
Let's see - we have the traditional "my concept of 'the sexy' is filled with sadness" that we've come to know and love so much, so that's reassuring. We have the odd notion that T-Rex "got closer and closer to" telling his story when he did no such thing (I mean you never get closer than 'It starts like this' which you just get to read over and over again) and just in case you missed it you are reminded that Randall has channeled Zeno's Paradox which is a mathematical concept that Randall knows about, you see. Even if this comic only relates to the paradox in terms of the rectangles getting smaller and smaller each time; the story does not, I think, get closer and closer to anything. Or lose a race to a turtle.
on a totally unrelated note, I love the current chainsawsuit comic.
Update: Reader Ariel points out that this comics recursiveness is rather reminiscent of the very first Abstruse Goose. Not saying Randall copied it, just something to remember when all the Munroe Fanboys are all like "ooooh that's so creative no one has EVER thought of that it has like literally infinity jokes omg omg omg" and then also I would add that this comic does, actually, approach an ending in a Zeno-like fashion, unlike the xkqwantzcd comic.