> This article glances off a really interesting related problem - the choice between “at most once”, “at least once” and “exactly once” events. Yeah, I'm not a

> This article glances off a really interesting related problem - the choice between “at most once”, “at least once” and “exactly once” events. Yeah, I'm not a distributed systems expert, but I think this is one of the foundational problems of distributed systems. And that exactly-once delivery is considered to be impossible over a lossy channel. (That excludes abstractions used to create lossless channels over a lossy channel, such as TCP.) Hence the choice between at-most-once and at-least-once delivery, of which I think most of us choose at-least-once.