I'm thinking 7 blocks x 7 blocks. Which means 49 2.5" squares per block multiplied by 49 blocks for a grand totally of 2,401 2.5" squares. ( I always thought the name referred to the mishmash of squares colliding together, but maybe it's more appropriate for the reaction when you think of all those little tiny squares being cut and sewn together!)
But I'm up for the challenge!! I've got 11 blocks done already. BRING IT ON!!
It's perfect to use all the random fabric I have overfilling their storage bins, plus I can keep sewing in the midst of the self-imposed fabric diet I've put on myself. It's liberating to just put two random squares together and sew, without having to think about how it plays with the fabric next to it. We'll see how far I get, but I have a quilt retreat coming up in November... this may be the project I work on there too!