In reply to GrahamD:
> Astonishing ! From unbelievable artefacts of a mathematical model of gravity through SciFi staple to accepted main stream cosmology through to (potentially) bedroom posters pretty much in a lifetime.
They are truly amazing things to contemplate aren't they.
I often think to myself what the environment of a black hole would be like to a close observer (sort of a mental thought experiment) . The sheer notion of the power/gravity involved and general conditions that cause an event like that.
There can't be much else conceived of that could come close to such a phenomenon .
Save maybe the big bang.
The collapse of our notions of physical laws, time, and causality.