A similar occurrence happened to former president Calvin Coolidge in 1904, although it was regarding a new concept called automobiles. Coolidge was a 32-year-old lawyer and politician, and the automobiles were considered unreliable and expensive. Coolidge thanked the man who gave him his first ride, and said, "It won't amount to much."
Obviously we both lacked vision and were wrong. Coolidge would lead the nation through the roaring 20s and the Industrial revolution which would see the Ford Model T mass produced, and the modern world has exceeded well beyond email.