The Lying Clock

Countdown timers on e-commerce sites are almost never real deadlines. Refresh the page tomorrow and the timer resets. Some sites generate personalized timers — the clock starts when you arrive and exists only for you.

The timer works because deadlines compress your decision-making window. Under time pressure, your brain switches from deliberate analysis to gut reaction. You stop asking "do I need this?" and start asking "can I afford to miss this?" That question always has the same answer: yes, you can.