The Importance of Chaos Engineering in the Development of Systems

As developers we generally think about what latencies are and when we're building a system we're building it on some assumed latency like typical latency. What we usually don't account for is when that latency changes and then chaos happens so how can use chaos engineering to to make those latency changes happen in a controlled way? That's the one thing that I think a lot of absorbly systems kind of don't necessarily bubble up readily that and a lot of people miss it right.