Interesting how he critiques something cryptic in Scheme and doesn't show the Smalltalk equivalent. One thing that should have its own full section is performance as it is slower than Java, compiled Scheme, and I'm guessing V8 optimized JS. I know the whole hotspot JIT thing was maybe pioneered in Smalltalk though? I do like certain things about Smalltalk (Pharo looks nice), but it is hard to do certain things with it like a GUI. Well I mean it is hard to find out how to do that....not necessarily hard to implement.