Heya Spike,
One data point you may be missing (and it isn't necessarily intuitive) is that the computer code associated with those forms is fairly standardized. That's what makes it easy for the browser to identify what pages have form fields in them, and figure out what information to automatically insert.
One data point you may be missing (and it isn't necessarily intuitive) is that the computer code associated with those forms is fairly standardized. That's what makes it easy for the browser to identify what pages have form fields in them, and figure out what information to automatically insert.