[romaniv]

This video contains many serious misrepresentations. For example, it makes a claim that Alan Kay only started talking about message-passing only in 2003 and that it was a kind of backpedaling due the failures of the inheritance-based OOP model. That is a laughable claim. Kay had given detailed talks discussing issues of OOP, dynamic composition and message-passing in mid-80s. Some of those talks are on YouTube:

https://www.youtube.com/watch?v=QjJaFG63Hlo

Also, earlier versions of Smalltalk did not have inheritance. Kay talks about this is his 1993 article on the history of the language:

https://worrydream.com/EarlyHistoryOfSmalltalk/

Dismissing all of this as insignificant quips is ludicrous.

[Mathnerd314]

The dates are the dates of the sources, he says in the talk he wasn't going to try to infer the dates these ideas were invented. Also he barely talked about Alan Kay.

[romaniv]

From the video: "It's like, yeah, he said that in 2003, right? He said that after a very long time. So why did he say it? It's because 10 years earlier, he was already saying he kind of soured on it."

https://youtu.be/wo84LFzx5nI?t=823

He mentions Alan Kay about dozen times and uses quotes and dates to create a specific narrative about Smalltalk. That narrative is demonstrably false.

[Byte2Pixel]

What's laughable is not understanding how citations work. The year is not when message-passing was invented or used.