More proof (as if we needed it!) that we’re getting old: the indie-rock queen bee Feist, and some soulful band called Broken Social Scene plays at the hipster mecca McCarren Park Pool in Billyburg today (this is a pool filled with pot and picnic blankets, not actual water), and despite rapturous and unanimous praise from all the coolest people we know, both of them continue to sound to us like so much noise. Meanwhile, MoMA attempts to fill Manhattan’s total and complete void of excitement today with a screening of the migraine-inducing flick Pi (1998), made by Darren Aronofsky before he had the good fortune to hook up with the gorgeous Rachel Weisz. The plot: A genius mathematician who has built a home supercomputer that he believes can provide a key for understanding all existence. Why not?