If you missed any of the NAS Speaker Series presentations, they were all recorded. Unfortunately the recording of the Knarr Mystique was corrupted so it has been lost. The others are available here:

Norwegian Steam, January 23, 2021 with Juan Corradi, click on the following link to view the recording https://youtu.be/OlyI_bta2dk

Don't Give Up the Ship!, February 20, 2021 with Rich du Moulin, click on the following link to view the recording https://youtu.be/KA2-7ZEryUo

Baltic Yachts, April 24, 2021 with Anders Kurtén and Dario Segre, click on the following link to view the recording https://youtu.be/af_i1suEvc0