What is a summary of the short story "The Pedestrian" by Ray Bradbury?

"The Pedestrian" takes place in a dystopian future in the year 2053 and follows the lead character, Leonard Mead, as he takes a walk through the city. His walk in itself is remarkable in the context of the story, a future where he is the only one on the street.

As he walks along, he hears evidence that others are inside watching TV. He meets a police officer — the lone officer left in the city — who questions his purpose and then takes him away.

The central theme of the story is Bradbury's warning about the soulless nature of a society that has lost its sense of humanity, here symbolized by the addiction to television rather than human contact.