Thanks for sharing this. I just watched the first video, but plan to watch the rest of the series. It’s really helpful to see the delivery of the different levels, but also to see how there is more back and forth dialogue at the higher levels. It’s a good reminder that all learners contribute to their own learning, and that there is so much value in the discussion. I’m assuming that the scientist was able to gauge and adapt his approach based on the participant’s response to the initial question. He has some serious skills at changing up the vocabulary and explain a concept based on his audience.