Availabity with dynamic content is easy (ok not easy, but it's a fairly routine straightforward process). The CAP theorem says you get 2 out of the 3 of consis

Availabity with dynamic content is easy (ok not easy, but it's a fairly routine straightforward process). The CAP theorem says you get 2 out of the 3 of consistency, availability, partition tolerance. Just getting availability and partition tolerance by themselves is just a matter of good engineering, nothing revolutionary.