Much of Bradbury's creative predictions concerning technology in the future relates to the growing presence and influence of technology in people's personal lives; compared to today, Bradbury's vision is very much an accurate one.
In Fahrenheit 451, Montag lives in a world where technology is bigger, faster, and more accessible. His wife Mildred lives a life consumed by her attachment to television, in which the screens are extremely large 'wall screens' much like today's flat screen televisions. People in Montag's world are 'plugged in' to media, listening to the radio or music in "seashell" radios that fit into their ears, which help them disconnect further from reality; these "seashells" are almost identical to modern society's preference for Bluetooth headsets and earbuds. The characters depend on media like television for all information; books have become obsolete and banned. Society has a predilection for going fast, and speeding cars are a commonplace occurrence much like today.
Bradbury made many predictions with startling accuracy about the role of technology in Fahrenheit 451.