The one thing

What is the one thing you've learned today?

What is the one thing you've extrapolated from all the conversations you've had?
What is the one thing that sticks out at you and makes you wonder - "why didn't I think of that"?
What is the one thing that tomorrow, you'll remember today?
What is the one thing, not number two or three?
What is the one thing that you will action - right now?

What is the one thing you've learned today?