If a black hole were to suddenly open up right beside you, you would experience a phenomenon known as "spaghettification" due to the immense gravitational force. Your body would be elongated and stretched into a long, thin shape, much like spaghetti. The black hole's gravity would also pull you towards it, and you would eventually be pulled past the event horizon into the black hole, never to be seen again. Anything around you, including the Earth itself, would also be affected and start getting pulled into the black hole.
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