I was introduced to him pretty late in the game, in this interview where he and Joe Armstrong and Carl Hewitt talked concurrency! It was interesting hearing them discuss their different thoughts and approaches

https://www.youtube.com/watch?v=37wFVVVZlVU

How sad that we all missed when Carl Hewitt submitted that video to HN: https://news.ycombinator.com/item?id=19202209.

I had no idea that a discussion between the three of them even existed.