The orderly chaos of black holes
https://phys.org/news/2019-01-orderly-chaos-black-holes.html
When two neutron stars collide or a super-massive star collapses into itself, a black hole is created. This birth is accompanied by a gamma ray burst (GRB)—a very energetic light wavelength such as that emitted by radioactive sources.
Is the black hole birth environment organized or chaotic?