You open your phone at lunch, see a deal posted two hours ago — 55% off a product you've been watching — and by the time you click through, it's gone. The reason it disappeared isn't bad luck. It's structural.
The Velocity Problem
The best deals move fast because information moves fast. A decade ago, a pricing error might sit unnoticed for hours. Today, price tracking bots, deal communities, and push notifications compress the discovery-to-purchase cycle into minutes. When Amazon drops a popular product by 40%, the signal propagates through multiple channels almost simultaneously.
This creates what retailers have learned to exploit: artificial scarcity as a feature. Lightning deals and limited-quantity promotions aren't limited because of supply constraints — they're limited because urgency drives conversion.
The Three Windows
Most high-value deals go through three phases. The discovery phase (first 15-60 minutes) is when alert-driven buyers capture the deal. The amplification phase is when it hits social media and most people see it — often already sold out. The echo phase brings irregular restocks from canceled orders.
What Actually Works
The most reliable approach isn't speed — it's preparation. Decide in advance what you want, set price alerts at your target, and wait. Most products go on meaningful sale at least once every 60 to 90 days. That's why we built Deal.fo with a 6 AM update — capturing overnight price drops before most people are awake.