E-commerce sites tracking how long you pause before buying could use that as a signal of hesitation or interest, adjusting prices accordingly. While it might help sellers optimize revenue and match offers to intent, it raises fairness concerns, since slower decision-making could simply mean careful comparison, not willingness to pay more. Analyzing pause patterns, cart abandonment, and repeated views could reveal user uncertainty, but turning that into higher prices risks punishing thoughtful shoppers. Heatmap-like checkout logs would show where people hesitate or drop off, guiding better design instead of dynamic penalties.