2 mins
https://www.youtube.com/watch?v=56rX5eLDO3w

I hadn't seen this one before. I see what he's trying to do. I actually use that up and forward position with pillows for support to get relief.

But in the case of the exercise, seems like the compression would return right after you dropped the clavicle back down. Unless he's implying that over time the space would open up. Or maybe for people who habitually pull their shoulders back (which pulls the collar bone back), this can help reposition them.

What do you think?