Scenario 1:
Phase 1: conformist simplicity. You are credulous, believing in everything you hear from the masses. You don't think a lot, and the few thoughts you have are shallow.
Phase 2: anxious overthinking. You realize what the masses believe is mostly non-sense, and you think for yourself, and feel anxious in the process, as your previous way to look at things is shattered.
Phase 3: non-anxious overthinking. You feel calmer or even upbeat while you keep thinking critically and keep exploring various possibilities.
Phase 4: you have overthought so much that your "thought density" is so high that your thoughts collapse unto themselves.
Phase 5: New Simplicity. It's a light-hearted temperament, with shallow and upbeat thoughts, but non-conformist, and a lot more aware and less naive than in Phase 1. Everything you learned in Phase 2 and Phase 3 remains, but you no longer need to actively think about any of it, it becomes part of your subconscious intuition, while your feelings remain light-hearted.