Stupid question, posed but apparently not answered in TFA: What if a small black hole approached a person, or even came into contact? Would we see it as, say, someone's arm suddenly falling off for no apparent reason? Or would the size of the black hole be so infinitesimal that for practical purposes it wouldn't matter?
FTA: "'I think someone asked me what would happen if a primordial black hole passed through a human body,' recalls Tung, who did a quick pencil-and-paper calculation to find that if such a black hole zinged within 1 meter of a person, the force of the black hole would push the person 6 meters, or about 20 feet away in a single second. Tung also found that the odds were astronomically unlikely that a primordial black hole would pass anywhere near a person on Earth."
venusenvy47
Would a primordial black hole have a small accretion disk? If so, it seems like that disk would give off radiation.
Already__Taken
so wouldn't small black holes since the dawn of the universe be very fast by now? 13 billion years of bouncing past particles must add up.
_rm
"Dark matter" sounds a lot like "we've run out of ideas so we're going back in the direction of 'the ether' and chariots pulling the sun across the sky and the like".
FTA: "'I think someone asked me what would happen if a primordial black hole passed through a human body,' recalls Tung, who did a quick pencil-and-paper calculation to find that if such a black hole zinged within 1 meter of a person, the force of the black hole would push the person 6 meters, or about 20 feet away in a single second. Tung also found that the odds were astronomically unlikely that a primordial black hole would pass anywhere near a person on Earth."