My weekend project: All 1e280 possible tweets on one page

You're not including spaces (0x32). Even then, this won't create all possible tweets since it is limited to a little tiny bit of the whole unicode space. Please don't think that I don't like your idea, but it might benefit from some improvments :)

Interesting experiment. Reminds me of Borges's "The Library of Babel".

Would be interesting to see all tweets using only lower-case alphabet plus spaces. (~ 2.5e200)

This is impressive from the simple fact I can type any tweet-able sentence and it is there. Now, this is kinda obvious because it is what the post is about.

But, doing it. Actually typing in a sentence. Every sentence. Even what I am writing now is there. Really, take one, copy and paste, like this one, and it is there.

This could actually be useful if the tweets were assigned indexes. You could create a tidy little cipher.

The first thing I thought of when seeing this was the short story "the nine billion names of God." Except that this is a hair more than nine billion... Seriously though, this is impressive; it's so quick!

It's really, really fast. Congrats ! No accents though: try searching for `é` for example.