also, we work with given figures here, but math in quantum physics is nowhere near trivial. it might just be that we’re playing the figures down compared to what they really are — and vice versa. this machine brings particle colliding to such a new level that we don’t really know what to expect. as particles approach the speed of light, they gain mass (Einstein’s equation) and lose space (Lorentz contraction) approaching ever more state necessary to form a stable singularity. and hey, the LHC is still a human-made machine — the collider itself is subject to math errors and engineering flaws.
helium leaks, that kind of thing: we simply cannot predict what will happen. the tiniest helium leak would set up a self-sustained fusion process, and what you would have is basically the world’s largest fusion reactor. presto: “large hadron collider” becomes “massive H bomb” and you can say goodbye to your european friends.