Californians. What back up plan should we have just in case the mad scientists at Lawrence Livermore lab ...?

Blackholes aren't magic. If you take a bowling ball, turn it into a black hole, it will have... exactly as much gravity as the original bowling ball (to be fair, it will still have an event horizon, just one that is so tiny as to be effectively non-existent).

Thus, if scientists create a black hole, that black hole will have only as much gravity as whatever it was they used to create it. As they tend to be working with relatively mass-light compounds (when compared to a star), any black hole they create would largely be harmless. Indeed, most would evaporate almost as soon as they are detected.

"Californians. What back up plan should we have just in case the mad scientists at Lawrence Livermore lab create a black hole that goes out of control and starts to gobble up everything."

They do not have enough mass to do that. The Tevatron and LHC have both made tiny black holes, and they evaporated via Hawking radiation. Until you get more than the mass of a mountain in a black hole, it will evaporate in a fireball.

"Use your immagination "

They've been "Chicken Little-ing" this for decades. Nature makes these tiny things by the thousands each day, and we are still alive.

This dog just won't hunt.

Actually, strangelets probably present the greater danger, but the fact is that all of these objects have been created naturally as cosmic rays interact with our upper atmosphere. Since we're still here, I agree that there are many other things to worry about.

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hmmmmmmmmmmmm interest and scary concept.

If you are that afraid just move.

I lived in California, now I am in Reno. I figure eventually I will have ocean front property....so many things to be afraid of.

If we over think of what might happen we lose out of what IS happening in our lives

Limit your back up plan to crossing your fingers and hoping it works. We've had promises of fusion breakthroughs for decades all amounting to little.

I'm not saying scientists and engineers should stop working on it, only there's a long way to go.

Californians, need concentrate on their real worries, earthquakes, tsunamis and bankruptcy.

Um we have a mad scientist in Cali?!?!?! Better storm the lab with the mad scientist in it! If they do do it then we must attack then and take them out before the blackhole

RUN!