I again apologise if this is in the incorrect section and it sounds a dull question.
I've just thought to myself about the universe and how we view it I suppose in the fashion we do now but how do we know the way we view it is the 'correct' way up i.e. not upside down.
How would we determine whether its the correct way up, relative to what?
Does it really matter?
Have I missed something lol.
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