Excellent cosmology lecture from the Royal Institute

I'm a lay person who tries to keep up-to-date on cosmology—dark matter, dark energy, attempts to unify the theories of the large and small—stuff like that. I devour the stuff that's available online.

I didn't expect much from this lecture because I've seen so much of the material elsewhere but I was wrong. I found it insightful. The speaker gives a very thorough detailed lecture on where things stand in this field. Lots of basics for the new person plus a number of new ideas for those of us seeking out new revelations.

RI is the Royal Institute and it's a lecture hall steeped in history. The audience is thin but given they are wearing masks I suspect the pandemic is the reason. Either that or students don't know what they are missing. :D

If you just want the most interesting bit, skip ahead to minute 37 and give the professor at least to minute 44 to spell out what he has to say.

If you only look right after the BB you see neutrinos and photons. Not that nothing else is there, rather one just can't see it from that limited viewpoint.

As the Universe expands add dark matter and atoms. Present day add dark energy but in the future because the expansion continues to decrease the density of matter there will only be dark energy left.

https://www.youtube.com/watch?v=1dh2UL7R9II

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via International Skeptics Forum https://ift.tt/usAdjzJ