The team behind the video of the coke bottle has a TED talk that explains it in detail: https://www.youtube.com/watch?v=Y_9vd4HWlVA

Edit: oops I misread your comment

It would've been nice to have the whole page to be in the Sans Forgetica font to see it in action.

I tried copy-pasting the whole website into the "Type something you want to remember" box near the bottom. Unfortunately, it's a <div contenteditable> and the original font styling got copied inside too. :|

they clearly don't want you to remember their site. If they did they'd be using their font

They have a chrome extension that does this.

computerphage wasn't using deduction but rather contraposition. (A -> B) => (!B -> !A). The absurdity of (!B -> !A) shows that (A -> B) is not true for all cases.