Tomorrow, people all over the globe will film a short video of their day - hopefully fully-clothed - and post it on YouTube. The project is called Life in a Day, and the submissions may end up part of a feature film.
Odds are, a few people will capture something extraordinary. The rest of us will probably just be making lunch, driving our kids to swimming lessons, or beating the heat on the sofa with a Netflix rental.
But it's not an individual submission that makes the project so interesting - it's the collective experience - seeing what July 24th was like from Boston to Bangladesh.
As an artist named Paul Klee once said, "A single day is enough to make us a little larger, or, another time, a little smaller."
Tomorrow a window on our worlds may just do both.
That's a page from my notebook.
I'm Katie Couric, CBS News.