General Knowledgespeaking topic
Cash or card? With cash, the 'pain of paying' curbs our spending; with a card that feeling goes numb, so we spend more. Why does the payment method change our behavior?
— the pain of paying, behavioral economics
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
similar topics
- Why is Bach's mastery of counterpoint in Baroque music seen as a kind of mathematical perfection? Let's talk about melodies woven into one another.
- Music or podcasts while walking, or silence? A quiet walk lets the mind wander and sparks creativity; constant content fills that gap. Why can boredom be useful?
- What does Tolstoy's 'War and Peace' say about history, fate, and the role of the individual? Let's talk about ordinary people living in the shadow of great events.
- Why is the week seven days long? It matches neither the Moon nor the Sun and has no counterpart in nature; it is an entirely artificial invention from Babylonian astrology, based on the seven classical 'planets.' The most basic cycle organizing our lives comes not from the sky but from human imagination. Why did all of us fall in line with a rhythm that does not exist in nature?
- Should eggs be kept in the fridge or at room temperature? America washes and chills them, Europe leaves them unwashed on the shelf; once the protective cuticle is removed, refrigeration becomes mandatory. Why are both systems internally consistent?