I'm currently reading "Thinking, fast and slow" by Daniel Kahneman himself and I couldn't recommend it enough. One point he makes early in his book, though, is

I'm currently reading "Thinking, fast and slow" by Daniel Kahneman himself and I couldn't recommend it enough. One point he makes early in his book, though, is that when he talks about "System 1" and "System 2", it is merely a figure of speech, that he talks about two systems, two minds, precisely because of how we tend to relate to each one of them as an agent. But he wants to be clear that reality, as far as his research goes, is not "two systems". Or at least that's what I got from it!