I was thinking about something similar. System 1 thinking: patterns. System 2 thinking: logic. For example: System 1 thinking: Does x sentence sound like a

I was thinking about something similar. System 1 thinking: patterns. System 2 thinking: logic. For example: System 1 thinking: Does x sentence sound like a correct English sentence. System 2 thinking: Verify x sentence is a correct English sentence by using grammar rules. Someone fluent in English can form correct English sentences using only system 1 thinking, while someone that has just started learning English must think about grammar rules (using system 2 thinking) to do it.