We did a group read-through of the Technology Primer section of the Bitcoin Design Guide and then worked in a FigJam document to visualize how the Lightning network works.
Note: we had a technical issue with the recording towards the end, so the last 20 minutes or so of the call is missing.
Disclaimer: information in this video may not be technically accurate down to the very last detail; it was a high-level conversation intended for a designer audience.
Call issue here:
https://github.com/BitcoinDesign/Meta/issues/245