*Andrew Pestell asked the Naked Scientists:*

Q1: If you had a X kg of matter such that adding 1 kg of matter would cause it to make a black hole and you added the 1 kg of matter to form a black hole, waited a while, then added 2 kg of anti matter (opposite spin) so that it anihilates with 2kg of matter giving a total of X-1 kg of matter (x 1 -2) what would happen?

Q2: Would an anti matter black hole bend space the other way to a matter black hole?

*What do you think?*