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In the vast emptiness of the universe, the speed of light is way to slow for us to communicate effectively or travel beyond a small part our own little galaxy. The next closest star in our galaxy is Alpha Centauri at about 4 light years.
Ironically, as the universe continues to expand, the spaces between galaxies are only getting larger. Our own Milky Way is about 100,000 light years across. Parallel universes and worm holes are looked at as possible shortcuts in time/space travel. The speed of light seems a snails pace when put into perspective.
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