[oatsandsugar]

The "choose your date by selecting a substring of pi" is absolutely incredible.

[infogulch]

I couldn't find my birthday in the first 10 or so pages, so I clicked "Give up" and searched the page for it. Said my pi index was in the 100,000s. Went back to the ui to select it manually and gave up after clicking fast for minutes and I hadn't even hit index 50,000.

[spacechild1]

How do they prove that it is indeed possible to select any date? :)

[dmd]

By search, since it's trivial to find any 8 digit string in the already-known digits of pi - in fact all 100 million combinations appear within the first ~2 billion digits.