I understand him a little more each episode.
I agree with Edward Povazan: A whole parallel computing universe that I, having been on a C/C++/Java path, would not have been exposed to.
I don't know Smalltalk, but have had several enlightening conversations on it with Patrick. If history had played out a little different, we might all be building with Smalltalk.
For me, exploring JavaSpaces has been a bit like what I hear Edward saying - there are whole other worlds out there in software. Some good bits / some bad bits to be sure, but some of the things that didn't catch on in the mainstream certainly should have. There were reasons to be sure - some of them self-inflicted, but the calculus of what technologies make it and which ones fail is far from meritocratic.
Update: Fixing capitalization of Smalltalk from SmallTalk after being vigorously scolded by Patrick :)