Fortran seemed easy, C was similar, but my mentor wanted to impress me using strtok() in the middle of already existing strings to cut them into words. And like the author, I had my “uh… what?!?!” moments climbing the Smalltalk curve.
Smalltalk was transformative for me. Unlike the author’s experience, I learned an object oriented philosophy in a pretty thoroughbred environment.
The best way to learn a second spoken language is to immerse yourself in it. Wanna learn Norwegian well? Go live in Norway for two years.
Unfortunately, while the hype around Smalltalk and some of its other peers rose, it forced others to “add/borrow” OOP into their philosophies.
Classes were not the heart of OO in the Smalltalk-verse. The root proto class in many implementations was called Behavior. The whole gig in Smalltalk was binding behavior to data. Figure out where a good cohesive boundary for data that glumps together well and dress it up with behavior. You then excited your objects to, well, uh, behave. Or in the lingua Franca, you sent messages to them and they always responded with something. And that was pretty much the whole schtick. I found it a very useful system for modeling things around for me. More than any language since, I found I anthroporhized these behaviors a lot. Algorithm design was often a sort of “if I assigned different people in a room to represent different pieces of state, what would they say to each other to get the job done.”
This is where my take deviates from the article. What was liberating about this, was that they kept it simple and stuck to this. In Smalltalk you might ask, well, what’s a class? It’s an object. But in most other OO systems, something happens here. Usualky, first class classes don’t exist. Or they do kinda. But often, it’s another area of the language you have to learn to specify behavior taxonomies. It’s like two different languages.
How do you create an instance of a class. In Smalltalk, you sent a message to it. Because that’s what you did. You sent friggin messages! But in just about every other OO system, you now get to learn about constructors. Are they like messages/functions? Kinda. But they’re different. Do you express and invoke them like messages? See “kinda.” Separate sub language count now equals three.
What about math? Gotta do that the way you learned how to do it in school. Precedence rules. But in Smalltalk, you sent a message.
Meta programming? Send more messages. Control flow? Send messages. Looping? Send messages. Functional style collection traversal? Send messages.
This isn’t meant to be a Smalltalk love fest. I moved on 10 years ago. But what frustrates me is that people refer to Algol derived languages as object oriented. Most of them aren’t. They’re object-additive. And functional-additive. They’re 10s of language ideas and syntaxes balled up in one, little bits of syntax competing for contextual disambiguation. They’re complicated for all the same reasons that while Spanglish is appealing to a wide body of English and Spanish speakers, you’d go nuts trying to put down a formal definition of how to speak it.
OO isn’t why languages are complicated.