sixty-five million sound like a big deal by any standard. that's the size of the improvement that an online army of collaborating mathematicians has already made to a groundbreaking proof involving pairs of prime numbers, which was first announced just a few weeks ago.
though the improvement is big, mathematically speaking it amounts to a technicality. still, the achievement showcases a new way of doing mathematics online. since the proof appeared, mathematicians from across the world have been locked in an addictive race to tighten it up.