Earlier quoted context omitted.
To maxerickson: I know what you mean, but I still think you have to look at the numbers. It seems plausible to me that the black hole might be so small that it would take literally millions of years or more to consume enough mass to become a threat. And that might even depend a lot on chance since most particles would just drift by it without passing inside of its event horizon since the force of gravity has very lit…
Right, but if that were possible, it would have already happened. Cosmic rays hitting the Earth's upper atmosphere can already have much, much more energy than the LHC achieves. So the LHC is being ramped up to produce 13 TeV collisions... but we've measured cosmic ray impacts as high as 300,000,000 TeV. That was the so-called "oh my god particle", which had as much kinetic energy as a 60mph baseball, even though it…
Far higher energy stuff than anything we can dream of producing in a lab happens all over the world all the time. And the stuff that's documented now is only the things that have happened since we started being able to detect and measure it.