Consensus is most categorically not cache invalidation. Consensus is about creating new information, namely a decision about which a group of machines/processe

Consensus is most categorically not cache invalidation. Consensus is about creating new information, namely a decision about which a group of machines/processes agree. It's not insightful if it leads people to the wrong conclusions. It would be more insightful to impress on people that CS is a large and diverse field with more hard problems than can be reduced to a single pithy saying.