Final answer:
In Fahrenheit 451, Captain Beatty claims that books have been gradually disappearing due to electronic media and censorship.
Step-by-step explanation:
In the book Fahrenheit 451, Captain Beatty claims that books have been gradually disappearing over the years. He explains that books were once an important means of transmitting information, but with the rise of electronic media, the publishing industry has been shifting towards electronic 'e-books'. Beatty also mentions that the government and society played a role in suppressing books and promoting censorship.