Yes, radios need to be mandatory but you don't have to turn them on or even have plugged into a power source.
For the win!I think you're right. We should all have radios so we can listen to music while we're ignoring aircraft communications. I can get behind that idea!
The answer is Bonanza
What was the question ?I thought the answer was always 42.
42 is the answer to the “ultimate question of life, the universe, and everything,”What was the question ?
( the twist from the book is that while this may be the answer from millions of years of deep thinking - humanity forgot the the exact question and thus no one understands the answer).42 is the answer to the “ultimate question of life, the universe, and everything,”