[aix1]

Part of it observability bias: longer, more widespread outages are more likely to draw signficant attention. This doesn't mean that there aren't also shorter, smaller-scope outages, it's just that we're much less likely to know about them.

For example, if there's a problem that gets caught at the 1% stage of a staged rollout, we're probably not going to find ourselves discussing it on HN.