Space is really spread out, and we will forever lack the means to get around it fast. Space also happens to be highly inhospitable to human life. For these reasons, I submit that no human will ever go farther than Mars.
Space is really spread out, and we will forever lack the means to get around it fast. Space also happens to be highly inhospitable to human life. For these reasons, I submit that no human will ever go farther than Mars.
The Star Trek Communicator somewhat resembles it, and that is from 1964.
The Star Trek communicator was basically a walkie talkie. That was well established technology at the time and had nothing whatsoever to do with a smartphone.