[Safe] And here are the two frames extracted to two separate images. Anyone with epilepsy should be able to view this without issues. http://imgur.com/a/kQTQc
It won't blink as fast when played in the Twitter website or app. Twitter automatically converts it to a video when you post it, and there's a bit of a delay between every loop when you loop a video, as compared to a GIF.
After I received some assistance with testing (someone created a new account to test with, but then the account mysteriously disappeared - not sure what happened), I can definitely agree that videos (webms/mp4s) have a notable limp: https://drive.google.com/open?id=0B0l5ewAKDn5aNV9OS0x6QWw4VD... (this was the easiest way to share it)
I tried recording the GIF but that was too much for the GPU in my ThinkPad :P suffice to say that it's about ten times faster (and that playing the GIF in `animate' is even faster than that)
Ah, right, good point. (It's mildly amusing that the affidavit went to such lengths to describe GIFs, when nowadays it's really a webm or mp4.)
It seems that either twitter has vacuumed up any copies of the gif from their website, or google reverse image search has removed all/has no indexed copies of it on site:twitter.com. (I don't exactly want to upload the gif to twitter to test it...)
[Unsafe] Here's a mirror in case it goes down: http://i.imgur.com/Qi6tSit.gif
[Safe] And here are the two frames extracted to two separate images. Anyone with epilepsy should be able to view this without issues. http://imgur.com/a/kQTQc