I was confused by these things as well and here’s what I came up with: RE objects, I guess they are referring to Smalltalk-style objects. Objective-C has them

I was confused by these things as well and here’s what I came up with: RE objects, I guess they are referring to Smalltalk-style objects. Objective-C has them while Swift has a somewhat different flavor of objects. This author seems to consider that a regression of sorts. RE the connection and component languages — your “white collar” and “blue collar” languages (BTW, I like your terminology, so I’ll use it), I think they are making the point that Objective-C started with a blue collar language, C, and extended it with while collar language features (derived from smalltalk), while Mojo started with a white collar language, Python, and are extending it with blue collar features. The author likes the Mojo approach, though doesn’t really explain that. I think they are claiming Swift is somehow more aligned with the blue collar side than Objective-C and feel that’s bad, but it’s too vague to really mean anything. (I think the idea with Swift and some other newer languages is that you can have a single language that is good at both white collar and blue collar things and “native” to both. I don’t think Swift has quite pulled it off, but it’s still evolving, so we’ll see.)