Anti-Universe or a parallel Universe? Does it really exist? This is a hypothetical reality co-existing with one's own. I heard about and thought many times to reveal my curiosity. I googled but didn't get few ideas including Wikipedia.
Stephen Hawking could discover more things if he were not paralyzed. Finally, he died! Would such more new things invent as he invented 'Blackhole', 'Warm hole'?
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