Even if a user is a first-time visitor, their immediate behaviors reveal their intent to buy.
A completely new visitor lands on your site. Classical analytics only knows they arrived via a Google Ad.
If your DataLayer is fully optimized, you start collecting deep signals immediately: 70% Scroll Depth, Hovered on Size Guide, and Read 3 Reviews.
Within milliseconds, the Machine Learning algorithm computes those signals against thousands of past users.