Where Did The Universe Come From? With Prof. Geraint F. Lewis

Geraint Lewis is a Professor of Astrophysics at the Sydney Institute for Astronomy, part of the University of Sydney's School of Physics. His research focuses on the "dark side of the universe", the matter and energy that shapes our cosmos. Dr. Lewis is a teacher, an author, and science communicator. As well as two books on cosmology, he has published more than 400 hundred papers in international refereed journals. Dr. Lewis's newest book co-authored with Ferrie Chris is titled "Where Did the Universe Come From? And Other Cosmic Questions: Our Universe, from the Quantum to the Cosmos"

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Where Did the Universe Come From? And Other Cosmic Questions: Our Universe, from the Quantum to the Cosmos by Chris Ferrie and Geraint F. Lewis (affiliate link)

00:00:00 Intro
00:00:33 Bio
00:01:37 Parallel Universes
00:04:43 The Anthropic Principle
00:09:21 Where Did the Universe Come From?
00:13:23 New Physics
00:18:19 History of Science
00:22:00 Fifth force of nature
00:24:41 Gravity
00:27:27 Is Gravity from another universe?
00:29:10 Testing String Theory
00:33:40 the multiverse and time
00:38:07 Time leaks in from the multiverse
00:44:00 Cosmic Microwave Background

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[EventHorizonShow]

Do you think there was a universe before ours?

Where Did the Universe Come From? And Other Cosmic Questions: Our Universe, from the Quantum to the Cosmos by Chris Ferrie and Geraint F. Lewis (affiliate link)

[SquirrelDarling]

Listen now, then repeat tonight for sleep. Very relaxing voice.

[joelsky]

John - I have been fascinated by many of your episodes. I rarely comment, but feel I need to now since I want you to know that your productions have enhanced my life. After listening to an interview I sometimes go to bed full of wonder. Thank you.

[MattExzy]

Just waiting for Sabine Hossenfelder to crush my hopes and dreams on this one, too.

[itsfonk]

“Where did the Universe come from?”

All I remember is a lot of sudden excitement ✨

[leewolf]

I really hope I’m alive when Quantum mechanics and General relativity join in a whole new theory of understanding. I can’t even imagine the leaps well make when we have that understanding.

[MadderMel]

Wales, for it's physical size, packs a heck of a lot of varied and beautiful scenery in a relatively small area ! Mountains, rivers, lakes, forests, and also stunning and in many places unspoiled coastline with some gorgeous beaches !
The people are very nice and down to earth !
It really is a very beautiful country !

[arvid]

The fifth force to me, is this splendid channel. YT's best.

[edmundcowan]

Simulation is such an outlandish concept that it should not be seriously considered. It is crazy and wrong headed. Time is time. Billions of years can’t be seconds. We can’t be in computer.

[vonwux]

Old South Wales, represent!

Enjoyed this one, cheers.

[mrsmith]

This is probably my favorite channel in regards to space content

[MIck-M]

I am going to have to watch this a few times. I love the concept of a cyclic universe that eventually (via snowballing black hole action) becomes one singularity that has eaten all time and space, then exploding and releasing... well... everything. The existence of this 'dot' out of time and space suddenly appearing and going bang has always left we wondering how it might have got there in the first place... though if you take time and space away there is no 'first' I guess - now my head hurts :(

[richardavery]

This guy.... this guy.... reminds me of Sean Carroll. Total genius. What a insanely good conversation 👌🏻 probing the really big questions.
Nice Job JMG!!!

[slartybobfoster]

I feel we can't exclude the human experience and consciousness since we are more or less bound by it. Simulation theory is interesting but doesn't it sound too much like an easy solution? Simulation theory is kind of like a god in a lot of ways. Both make sense of a difficult question, no coincidence it has grasped attention in the age of computers, even if it has been around in many forms for millennia.

[esquilax]

JMG's initial question reminds me of Mitchell and Webb's "I'm the captain" sketch. If you don't know it, look it up on YouTube, it's very funny

[RJay]

Regardless of time or multiverses...What bugs me the most is no final answer can ever explain how the very first 'thing' came into existance at all.

[petermainwaringsx]

Every week Event Horizon is eagerly awaited for its unique view of the cosmos. I isolate myself from any distractions and immerse myself in my personal Event Horizon. Thank you.

A bit of trivia from someone who lives in the area. Geraint is from Neath in South Wales. Some of the other famous people from this area are Ray Milland, Richard Burton, Anthony Hopkins, Dylan Thomas, Catherine Zeta Jones and quite a few others.

[BenGrem]

Yes. Top quality speculative cosmology exploring the boundaries of what may be! That’s what I come here for.

[rossmcleod]

Ohh that was good! Wonderful to hear someone so clearly on top of their game. Thanks again JMG.

[travisgrant]

I absolutely love falling into the EVENT HORIZON with John. Fascinating!