yeh they already knew there was a massive black hole at the centre of the galaxy from way back

normal black holes supposedly dissipate over time but logically that would only be once there is nothing around for it to feast on

they were gonna create a black hole at CERN's LHC but something stopped functioning so it has to be postponed...which is just as well cos sometimes things people think they could have control over take control back before people can do anything about it...and then the shit hits the fan