I apologize, I forgot to clarify in the original comment. I mean "System 1" and "System 2" as introduced by Kahneman. To quote from the Wiki[0],

> "System 1" is fast, instinctive and emotional; "System 2" is slower, more deliberative, and more logical.

[0] - https://en.wikipedia.org/wiki/Thinking,_Fast_and_Slow