Agreed. They approach things so differently, and I could watch them debate it all day. I never got a clear idea of how message passing isn’t just data, and I

Agreed. They approach things so differently, and I could watch them debate it all day. I never got a clear idea of how message passing isn’t just data, and I thought that “just data” via message passing is what separates Kay’s OO vision from what we call OO today. This discussion left me more confused, in a pleasant way. My current opinion of Alan Kay’s commenting style is mostly that he’s been thinking about this stuff for decades and still does not have many solid answers, just that he thinks “mimicking biological systems” is a necessary part. That’s a gross oversimplification and not intended as a slight: robust interplanetary-scale communication is a hard problem!