basically scientists want to know why particles like protons,neutrons and electrons have a mass, seeing as these are what makes up the world they believe that the world must of began with a collision of these particles BUT, the particles were travelling a damn sight faster then they will be today, the scientists were hoping to make them collide at a stupidly high speed containing the words gigatetravolt or something like that, the european courts of human rights put a stop to this and now its taking place at a much lower speed for the time being. the same speed in which particles from space strike through our atmospehere millions of times every year,and you dont see any black holes or anything created then do you??? the whole point of this experiment is to see what happens, the world wont end, the world will never end, it contains too much mass,only life itself can end,and it aint happening today, i promise lol