What are systemic failures?

A systemic failure is when something big breaks because all the little parts didn’t work well together.

Imagine you're on a train that goes from one city to another. The train has many parts, tracks, engines, signals, and people working at each station. Now, if one part fails, like a signal light doesn't work, it might cause a small problem. But if many parts fail at once, like the tracks are broken, the engine stops, and no one is ready for the train, then the whole train can derail.

That’s what happens in a systemic failure: many things go wrong together, and that makes everything else break down too.

Think of it as dominoes. If you knock over just one, it might not do much. But if you knock them all at once, boom!, the whole line falls down.

So in systemic failures, it’s like all the dominos fall at the same time, and everything crashes together.