I’ve been rewatching some old SFIA YouTube vids, hoping my brain has expanded a bit to take more in.
I watched a number of episodes on black holes. Black hole ships has a reference to a paper by Louis Crane and Shawn Westmoreland, which I read (but it’s a bit above my brain’s pay grade).
Anyway, it says we could focus gamma lasers at a point and with enough energy, we’d get a black hole. And then it goes on to say that one of these (generated) black holes, depending on the mass, would have a certain size. For instance a mass of a million tonnes might be an attometre in size.
A million tonnes of mass...From where? I mean, we didn’t shovel any garbage into it, no old skyscrapers or use-before-date aircraft carriers. We just shone lasers at it, so where does all the mass come from? What am I missing, here?