Looking for a way to kill some time? How about you count out the 10 trillion digits of pi that have been calculated so far? (Last year, by a chap named Shigeru Kondo; it took over a year of calculation and 7.6 TB of space to store the compressed output.) If that sounds fun, you’re going to want to clear your schedule: reading an average of 120 digits per minute, it will take you 158,000 years to get to the end of those 10 trillion digits.
If that sounds daunting, it would only take you around three weeks to recite the first four million digits. Still, though, while four million is a lot easier to wrap your brain around than 10 trillion, it’s still nearly impossible to visualize a number like that. But only nearly impossible, because some clever folks decided to assign colored pixels to each number between 0-9, and then create a visual representation of those first four million digits. You can see the full image over at Two-n.com, but here’s what the first 500,000 or so digits look like.