I remember being outside, on a cloudy day, on some pavement made of the same tiles as the ones on the balcony of the house I lived in over 13 years ago.

I was suggesting a member of the coworking space’s management, who apparently joined my company and probably as an intern, to measure the “surface flow rate” to determine when to cut off a water pipe after 10 liters have gone through. She was asking me about how to build a “water circuit breaker”.