Help Understanding the Music on Radio Moscow

There were a couple of photos shared last year:

Continuing the discussion from April 2017 update:

What I love about that one is that Dan has been saying that he could not possibly tell “customers” what is happening with the equipment that they paid for almost three years ago because that would give away valuable trade secrets, but helpfully describing airflow through the prototype was apparently no problem.

“The vast majority” of pre-order customers ordered a filter. How many people are still waiting on a filter, @dan? How many have canceled?

Here’s a less informative one from Email update June 2017: Glowforge shipments underway, schedule update, and more: