This! There is no single "truth". Under the unfortunate consequences of the CAP theorem and the speed of light, consistency grinds to a halt as the number of

This! There is no single "truth". Under the unfortunate consequences of the CAP theorem and the speed of light, consistency grinds to a halt as the number of observers increases. Time itself would have to stand still in the limit if at each time step every particle in the universe had to agree on the state of the system. What we need to preserve is mostly strong "causal consistency", which means that from a single observers perspective, the system "appears consistent". This article is really good and isn't obscured by NoSQL vs SQL arguments. http://www.grahamlea.com/2016/08/distributed-transactions-microservices-icebergs/ http://www.grahamlea.com/2016/08/distributed-transactions-mi...