3 explainers
Psychology and Decision-Making
Psychology explainers about decision-making, music, placebo effects, sunk costs, attention, and the mental shortcuts shaping behavior.
These articles focus on useful psychological mechanisms without turning every study into a life hack.
Use this page as a reading path: start with the core explainer, then follow the related guides to understand the key terms, practical tradeoffs, and open questions.
Questions this guide answers
- What is the sunk cost fallacy?
- Why does music give people chills?
- How does the placebo effect work?
Tools for these guides
- Sunk Cost Decision Tool — Compare future costs and benefits when deciding whether to continue or switch.
- Subscription Cost Calculator — Turn weekly, monthly, and annual subscriptions into one budget. Compare what you keep and cancel.
Why Are Cat Videos Everywhere? Psychology of Cute Content
Why are cat videos everywhere? Learn how emotion, low-stakes humor, social sharing, and recommendation systems keep cat content in every feed.
Why Does Music Give You Chills? The Science of Frisson
Why does music give you chills? Learn what frisson is, how the brain responds to musical surprise, and why some people feel it more often.
What Is the Sunk Cost Fallacy? Why It Is Hard to Quit
What is the sunk cost fallacy? Learn why past time, money, and effort distort decisions—and how to spot the trap.