How Behavioral Targeting with AI Doubles Engagement Rates

Why does an ad for the exact product you were browsing twenty minutes ago feel completely different from an ad for something you've never thought about? Both are ads. Both appear in the same feed. One feels relevant. The other gets scrolled past. That difference is behavioral targeting — and AI has turned it from a useful tactic into the defining competitive advantage in modern digital marketing. Ads using behavioral targeting increase engagement by 50% compared to generic ads. Here's what's driving that number and how to build a system that produces it.