This is a bunch of "I believe" and "I think" with no sources by a random internet person.
he’s not a “random internet person”, he created Redis. Despite that, I don’t know how authoritative of a figure he is with respect to AI research. He’s definitely a prolific programmer though.
Yeah, it’s called “Reflections”.
Indeed, and, what do you 'believe' or 'think' in response?
It's the personal blog of a famous internet person
That is what a blog post is. Someone documenting what they think about a topic.
It's not the case that every form of writing has to be an academic research paper. Sometimes people just think things, and say them – and they may be wrong, or they may be right. And they sometime have some ideas that might change how you think about an issue as a result.
What is a "source"? Isn't it just "another random internet person"?
Ah, I see you have discovered blogs! They're a cool form of writing from like ~20 years ago which are still pretty great. Good thing they show up on this website, it'd be rather dull with only newspapers and journal articles doncha think?