Forward motion allies
The average time an F1 car stops in a pit stop is for 2-3 seconds. While refuelling has been banned, the cars can stop to change tyres. A fresh set of tyres helps a car to go faster after it emerges from a pit stop. If the stop doesn't enable that, it's a waste of time.
This is the record for the fastest pit stop ever:
Like a pitstop, a meeting, a memo or an email are support systems. They are supposed to enable the actual work to move ahead.
Will having this meeting or discussion help move the needle forward?
Will this memo or email set things in motion or be relegated to the trash bin?
Will this conversation clarify things or cause more confusion?
When forward motion is hard to measure, it's easy to confuse the support systems with the actual work.