definition standard of cool

I know that somewhere in the past decade I came across a tweet that captured the following sentiment:

My new definition of cool is that when we are together I never see your phone ever ever

This is a paraphrase, but associated with the memory is the unusual emphatic phrasing. I have not been able to track this down for proper sourcing,1 but it seems increasingly relevant and poignant, particularly as my children age and I fail to meet this standard.

Update: I found it:

It was blogged by Kottke, who is at least Daring-Fireball-adjacent.

  1. I thought I read it on, but no amount of searching has turned it up.