Which statement best describes System 1 thinking?

• A. It relies solely on conscious, step-by-step reasoning
• B. It is primarily a slow, analytic process
• C. It operates quickly through automatic processes and heuristics
• D. It requires extensive planning before each action

Answer: (C)

System 1 thinking is fast, automatic, and intuitive, using mental shortcuts called heuristics to judge situations quickly. It kicks in without conscious effort, producing snap impressions and quick judgments or reflex-like responses. That’s why describing System 1 as operating quickly through automatic processes and heuristics is the best fit.

By contrast, slow, deliberate analysis and planning—what you’d use for careful reasoning or tackling a complex problem—are characteristics of System 2, not System 1.