276
Why we don't have 128-bit CPUs
(www.xda-developers.com)
This is a most excellent place for technology news and articles.
I know a google engineer who was saying they're having to update their code bases to handle > 16 exabytes of storage, if you can imagine. But yeah, that's storage, not RAM.
I would kind of enjoy the trouble of needing to store and owning the place for 16 exabytes...