Everything is working well for me.

The lift came. The card worked at the till. The key turned in the lock the way it has ten thousand times without once asking to be thanked for it.

Functioning systems are silent by design, which means the day's evidence runs heavily towards the one thing that broke. A single failed payment can colour six hours in which four hundred things went right.

You cannot feel all four hundred. But one working thing, noticed on purpose today, does adjust the tally slightly.