Can you answer the following question?
At the Big Bang the observable universe had the size of:
A) A point (no size).
B) A grapefruit.
C) 168 meters.
The right answer would be �all of the above.� And that�s not because I can�t tell a point from a grapefruit, it�s because physicists can�t agree what they mean by Big Bang!
For someone in quantum gravity, the Big Bang is the initial
Sunday, 24 July 2016
Can we please agree what we mean by �Big Bang�?
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