What's fundamental is not that he doesn't know what a light year is. I don't expect society to know the definition of a light year.
All I'm hoping for is an appreciation of the distance. The appreciation that light travels really fast. And that a light year is a really long distance.
Asking how many light years away Mars is shows a gross misunderstanding of the concept.
Again, I apologize to the guy this is seemingly directed at. You are but one case of a problem that is no doubt endemic in our society.
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"For thousands of years humans were oppressed - as some of us still are - by the notion that the universe is a marionette whose strings are pulled by a god or gods, unseen and inscrutable." - Carl Sagan
Freedom consonant with responsibility.
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