Same # of up/down/strange quarks = strange matter....

Creating strange matter could start a chain of events that is unstoppable and would turn the entire world into strange matter...

Should we still try to create this "strange matter" ?

In other words, they haven't the slightest idea of what may happen so they let slip a worst case scenario. World destruction.

IMHO, make it. Mankind won't advance sitting on their hands.

But do we make it here on Earth? Or somewhere else where it can take over all of the matter on that place and we don't give a fuck? IE on an asteroid

Now your taking an already expensive process and making it insanely expensive. If we were to see it researched in our lifetime it would be on Earth.

The consequences are soo utterly high to test it on Earth if there is even a chance of it being uncontrolable

It's strange in the sense that it is actually more stable then you are alluring to.

It effectively eats other matter that is less stable then it, but will be unable to 'eat' matter that is more stable then it. Boundaries can be made to prevent cataclysm.

but how do we know its stability until we can study it further?

Known particles that contain strange quarks are highly unstable and decay ridiculously fast (the mean lifetime for Lambda particles, for example, is 5E-25 seconds).

In a quick read about them, it seems like strange matter would need to be created in a large-ish quantity in order to make them stable, and even in the biggest particle accelerators, strange matter is only created in amounts comparable to the amounts we already see bombarding the Earth. The idea that we will create an unstoppable chain reaction and convert the planet is impossible right now.

If at some point in the future we gain the technology to do so (e.g. a planet-sized accelerator built in space, perhaps?) I'd say it would probably be worth trying. Strange matter is a Dark Matter candidate, and if we can prove that it can exist in large quantities, that'd be proof that strange matter might actually be the Dark Matter that we've been looking for.

? porekey

could we not use electric magnetic fields to contain it? like we do with anti matter