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[–] Krael 0 points 1 point (+1|-0) ago  (edited ago)

I'm gonna need some actual math to back up that claim. The matter within the black hole is what generates its gravity, so if all the mass converts into energy via annihilation, there's no longer anything holding that energy there. I'm not a scientist by any stretch of the imagination, but the flippant "this is the way it is" without providing any evidence to support that claim doesn't resonate with me.

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[–] invariantMass ago 

Matter-antimatter annihilations result in massive amounts of energy. So all of that matter that was being held in a location gravitationally would be conserved in the resultant annihilation energy and would be emitted in the form of mostly high energy photons (however other particle emissions are not forbidden). In fact, the amount of gravitational energy due to a massive matter/antimatter object is quite negligible compared to the mass to energy conversion of the annihilation. So he's not entirely wrong, besides the antimatter black hole, which is non existent and pure energy, which is kind of a misnomer.

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[–] escapefromredditbay ago 

yeah, id say we need a real expert in here