rpenner, eet al,
I have no Post-Grad work, but this has the ring of some sound advice.
(COMMENT)
I don't post very often (not often enough to even be authorized to post a link) simply because I am unsure of a lot of this.
I'm not convinced of the "Big Bang" or the follow-on standard model; but, it works for now. I'm not sure the description of a "Black Hole" (singularity) is correct (seeming to me that the singularity should be at absolute zero, having squeezed all the energy out of whatever falls in); but reserve judgment. And I'm sure as hell not a proponent of the "Dark Energy/Dark Matter" concept; yet acknowledge the apparent gravitational lens effect (no more than we believe in the "ether" (of Michelson–Morley experimental fame, that may be partially correct yet).
There are many ways to express a discord without becoming confrontational; just as there are many ways to explain a counter position without becoming aggravated.
In this forum, we should all try to teach me the basic concepts, as I am the least knowledgable.
Most Respectfully,
R