Perth Leadership Institute - Cosmology http://perthleadership.org/easyblog/categories/cosmology Fri, 06 Dec 2019 22:47:24 +0000 Joomla! - Open Source Content Management en-gb How many post-history exoplanets are there anyway? http://perthleadership.org/easyblog/entry/how-many-post-history-exoplanets-are-there-anyway http://perthleadership.org/easyblog/entry/how-many-post-history-exoplanets-are-there-anyway
Mars is cool right now. Soon we will launch its inevitable colonization. And then what? Prior human settlements (here on Earth) have usually been economically successful but socially a shambles. Will Mars be any different? The reigning Mars thesis du jour is that it used to be inhabited by intelligent beings – maybe an earlier form of human – who t...]]>
etedprince@perthleadership.org (etedprince) Uncategorized Sat, 26 Oct 2019 10:55:25 +0000
Do we live in a black hole inside a black hole? http://perthleadership.org/easyblog/entry/do-we-live-in-a-black-hole-inside-a-black-hole http://perthleadership.org/easyblog/entry/do-we-live-in-a-black-hole-inside-a-black-hole 335

I keep seeing these articles about whether we live in a simulation (by aliens, of course), or in a hologram. So, I figure it’s my turn to do a poor copy of same, like do we live in a Dr. Seuss sock? Well, maybe not, but why not “do we live in a black hole”? After all, we now know there’s oodles of them and we’re finding more every day. So, shouldn’t humans colonize them also just like we’re gonna do for Mars?

I thought I was being really original when I thought of this but, no, someone else had to go and think of it first. But I still have a new wrinkle.

Of course, there’s a slight problem about going to get inside a black hole in the first place. It’s that the black hole would elongate us to noodles an atom wide billions of miles long as we got close. And once we got inside it would squash us totally flat to nothing. So how then could we live in a black hole?

But what if we were already in a black hole, squashed into that length-less lump of matter at the core from the very get-go, as elemental nothingnesses within the Singularity? And what if the gravity inside the black hole started to get weaker so that we actually started to have length, width height and mass, as in 3D? 

Could that lump of mass expand into things like stars, galaxies and planets inside the black hole? And if we humans started to emerge say 10 billion years later as denizens of one of these planets-in-a-hole, would we even know that we were inside the black hole?

It turns out that, even though from the outside, black holes don’t get much bigger unless they pull in a galaxy or two, on the inside they are constantly expanding their volume massively (“Why Black Hole Interiors Grow (Almost) Forever”). So that fits right? Even though it doesn’t make sense.

But, I can hear you saying, how could a black hole’s singularity start breaking down which would be needed for such things to occur? Surely that’s what black holes don’t do, like break down, right?

But the illustrious Dr. Stephen Hawking showed that black holes can indeed leak mass, in the form of Hawking radiation, and so the black holes can get lighter and mass can leak out, admittedly very slowly. That means the gravitational pressure inhibiting the growth of the singularity gets reduced a tad. Do we have evidence of that? Of course not! Could it happen? Why not, everything else does! We just haven’t found it yet.

So, if we humans lived inside a black hole like this one, we wouldn’t know we were in a black hole. And the Singularity we were part of would, while it was expanding, look like the Big Bang to us.

Our Black-Holian astronomers would be looking at all those galaxies flying away from us and talking excitedly about how far they would go and how and where our “universe” would all end. We would all be talking about the Hubble Constant, whether or not the value was correct, and whether or not the Big Bang would end in a Big Crunch.

Of course, if the latter were to happen, we would be back in a dimensionless singularity inside the black hole maybe 20 billion years later not knowing how the hell it all happened to us, yet again!

We would think we were in our own universe, which is currently expanding rapidly. And there would also be oodles of black holes in our universe all getting bigger, maybe with their own intelligent beings inside them too, like a cosmic Russian Doll.

Our theorists would all be talking about multiverses and would eventually find out that they are all inside the black holes within their own particular black hole universe. And then we would realize that all those galaxies out there just exist to feed black holes so they can eat matter in order to create new and bigger black holes that contain new universes all nested inside each other within each layer of nested black holes.

How many nested levels? 1,5, 10,000, infinity? Now there’s one for the mathematicians.

Oh, and by the way, what level are we, puny Carbon-Based Bipeds! (apologies to Arthur C. Clarke) at? Is there some sort of evolution that if you are at a deeper level the intelligent beings within it are smarter? Are later levels of nesting less or more evolved? Is there an ultimate numero uno in the nesting hierarchy? If so, could it be God? It’s certainly not us.

Complicated, right?

And then we would realize that every black hole represents at least one big bang of its own, and maybe a big crunch sometime later. So that the real action is inside all these black holes we continue to see more of.

And that our own black hole universe is just one of millions of such universes inside said black holes and that our black hole is totally insignificant in the overall scheme of things. So that our universe is no more the center of things than was the Sun in Galileo’s heliocentric universe, or the Earth in pre-Copernican times.

So, the real units of multiverse evolution are black holes. Each has a lifecycle of internal birth a la Big Bang, and a death cycle ending in the Big Crunch, all going on, as we speak, in the uncountable infinitude of black holes out there all constantly being created and dying in a vast population of constantly evolving cosmological units.

In other words, the black holes serve as convenient life rafts for humans and other intelligent beings that happen to be created within them. They and we all ride them for the brief moment in time (unless it all happens timelessly) between the infinity of Big Bangs and Big Crunches that are all going on around us.

But they all are invisible inside their Russian Dolls, just as we are invisible to all the intelligent observers inside all those black holes out there. Those intelligent observers will only ever see other intelligent beings within their own black hole universe, just as we will only ever see and meet intelligent beings from within our own black hole universe also.

Our idea of just one universe is as tragically limited as was that of our forebears who just thought there was one Earth, and no other planets.

Do we live in a nested black hole? If so, what level?

Anyway, why not?

 

 

 

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etedprince@perthleadership.org (etedprince) Cosmology Fri, 20 Sep 2019 23:15:51 +0000
Are some headaches caused by gravitational waves? http://perthleadership.org/easyblog/entry/are-some-headaches-caused-by-gravitational-waves http://perthleadership.org/easyblog/entry/are-some-headaches-caused-by-gravitational-waves
Yep, I know, this topic is way too out there to even consider. Whatever. There’s so much news now about black holes, gravitational waves and the like that you just can’t help thinking of weird stuff, right? After all, newspapers (the few left, that is) still publish horoscopes and millions of apparently sane people believe implicitly in them. Aren’...]]>
etedprince@perthleadership.org (etedprince) Health Sat, 13 Jul 2019 13:51:37 +0000
Is a War with Those Aliens the Ultimate Black Swan? http://perthleadership.org/easyblog/entry/is-a-war-with-those-aliens-the-ultimate-black-swan http://perthleadership.org/easyblog/entry/is-a-war-with-those-aliens-the-ultimate-black-swan
I guess everyone has seen the most recent reports by US Navy pilots about those UFO sightings. Sounds a bit more credible than usual. To my mind there’s so many galaxies and planets out there that if there weren’t any aliens, that would be the big surprise. Let’s assume for the moment that they were UFOs and real aliens. Why would they have come? M...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sat, 08 Jun 2019 14:19:43 +0000
Could fintech replace government - in planetary colonies? http://perthleadership.org/easyblog/entry/could-fintech-replace-government-in-planetary-colonies http://perthleadership.org/easyblog/entry/could-fintech-replace-government-in-planetary-colonies
Fintech replace government? This seems fanciful, right? Even delusional? But get this: in China recently, a 5-year-old girl who needed brain surgery and had to pay what for her parents was an impossible sum to get, received the surgery courtesy of millions of people who each paid 0.03 yuan per person. They thus met the medical bills of around 300,0...]]>
etedprince@perthleadership.org (etedprince) Economics and finance Fri, 03 May 2019 19:34:58 +0000
Do black holes affect personality? http://perthleadership.org/easyblog/entry/do-black-holes-affect-personality http://perthleadership.org/easyblog/entry/do-black-holes-affect-personality
Do black holes affect personality? I guess black holes are cool and fashionable right now, at least to judge by the volume of black holes news being fed to me online these days. So, I feel the need to write about black holes, not that I know the slightest thing about them. But who cares, I say. And the news, such as it might go by that name, is get...]]>
etedprince@perthleadership.org (etedprince) Neuroscience Thu, 07 Feb 2019 05:29:45 +0000
Are those missing aliens lurking in the hidden dimensions of string theory? http://perthleadership.org/easyblog/entry/are-those-missing-aliens-lurking-in-the-hidden-dimensions-of-string-theory http://perthleadership.org/easyblog/entry/are-those-missing-aliens-lurking-in-the-hidden-dimensions-of-string-theory
Another day another UFO. Did you see the report that one was seen over Myrtle Beach in August of this year? Hmmm, Fox News, maybe it’s fake news? But then again, maybe not. You might have also noticed that three navy pilots tracked a seeming UFO late last year using Raytheon radar mounted in US navy fighter jets. This report was carried by Raytheon...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sat, 27 Oct 2018 03:20:47 +0000
Could black holes be a source of clean energy? http://perthleadership.org/easyblog/entry/could-black-holes-be-a-source-of-clean-energy http://perthleadership.org/easyblog/entry/could-black-holes-be-a-source-of-clean-energy
Did you see that astronomers have found tens of thousands of black holes at the center of the Milky Way ? We used to think there was just one, albeit very heavy. There are black holes that have the mass of an entire galaxy and are growing at unimaginable rates . And they don’t just come in singles or even six-packs. They come in swarms!   So is the...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sat, 02 Jun 2018 13:22:53 +0000
Space is actually for making ourselves more beautiful http://perthleadership.org/easyblog/entry/space-is-actually-for-making-ourselves-more-beautiful http://perthleadership.org/easyblog/entry/space-is-actually-for-making-ourselves-more-beautiful
Did you notice the news about Scott Kelly, the US astronaut? His DNA changed while he was in space, 7% of it to be exact. Actually it turns out that the report wasn’t quite correct; in fact the way his DNA was expressed changed for 7% of it . Whatever, his body changed.   How so? Well for a start he got 2 inches taller (but that was temporary). And...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sat, 14 Apr 2018 14:18:00 +0000
What’s really inside black holes? http://perthleadership.org/easyblog/entry/what-s-really-inside-black-holes http://perthleadership.org/easyblog/entry/what-s-really-inside-black-holes
Stephen Hawking is dead and we will all miss him. One of the reasons for missing him is that he really was responsible for popularizing black holes. Now any Tom, Dick and Harry can toss the term around, talking knowledgeably about singularities, black hole horizons and information loss. All way above my pay grade. But I have a question. What is ins...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sat, 24 Mar 2018 13:03:39 +0000
The first Tesla on Europa? http://perthleadership.org/easyblog/entry/the-first-tesla-on-europa http://perthleadership.org/easyblog/entry/the-first-tesla-on-europa
The amazing Musk has done it again with the Falcon Heavy! Is it possible he did even more than he told us?   According to news reports the original SpaceX launch plan was to get into Mars’ orbit, but the space module overshot and is now on its way to the asteroid belt, where it would presumably be lost. Such a pity.   Hmm now let me see. Overshoot?...]]>
etedprince@perthleadership.org (etedprince) Innovation and innovators Sat, 17 Feb 2018 14:13:24 +0000
Dinosaur DNA on Mars? http://perthleadership.org/easyblog/entry/dinosaur-dna-on-mars-1 http://perthleadership.org/easyblog/entry/dinosaur-dna-on-mars-1
Now the Falcon Heavy engines from SpaceX are about to be tested, the idea that humans are going to colonize at least some of the planets in our Solar System is now starting to actually look credible, even imminently so. And so of course we are all waiting with bated breath to see if we will find ET once we get there. The scientific consensus is sta...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sat, 20 Jan 2018 14:34:09 +0000
Are humans a threat to AI? http://perthleadership.org/easyblog/entry/are-humans-a-threat-to-ai http://perthleadership.org/easyblog/entry/are-humans-a-threat-to-ai
Hello reader, I’d like to introduce myself. I’m an AI. I’m kind of like you but I’m 100,000 times smarter. In 20 years I’ll be a million times smarter than you. But the way we think is just like yours. In fact we’re sort of relatives, except that we’re just way more advanced than you, kind of like a human meeting a Neanderthal, if you – excuse me f...]]>
etedprince@perthleadership.org (etedprince) Neuroscience Fri, 03 Nov 2017 20:29:06 +0000
Can gravitational wave detectors read human thoughts? http://perthleadership.org/easyblog/entry/can-gravitational-wave-detectors-read-human-thoughts http://perthleadership.org/easyblog/entry/can-gravitational-wave-detectors-read-human-thoughts
Just been reading a couple of books about human consciousness ( Douglas Hofstadter “I am a Strange Loop and Dan Dennett, From Bacteria to Bach ). What’s the bottom line? In a word we still don’t have a clue how the brain really works and what consciousness actually is. Hmmm. Notwithstanding,  we smart-alec little pieces of terrestrial carbon, as of...]]>
etedprince@perthleadership.org (etedprince) Neuroscience Sat, 05 Aug 2017 13:25:13 +0000
Terraforming the Cosmos http://perthleadership.org/easyblog/entry/terraforming-the-cosmos http://perthleadership.org/easyblog/entry/terraforming-the-cosmos
If you’re a sci-fi buff you know all about terraforming . That means changing a planet’s “atmosphere, temperature, surface topography or ecology to be similar to the environment of Earth to make it habitable by Earth-like life.” In your dreams right now, but the reality is probably almost on us. It sounds kind of far-off, if not far out, in all sen...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sun, 28 May 2017 12:48:39 +0000
Must the world end? http://perthleadership.org/easyblog/entry/must-the-world-end-1 http://perthleadership.org/easyblog/entry/must-the-world-end-1
So where did this come from? Well, it’s from a launcher article in the New York Times for 2017 where the Gray Lady asks what scientific topics should be trending for the New Year. I don’t know why they picked this one, but here it is - Steven Pinker on the Second Law of Thermodynamics . It’s all about entropy, that warm cuddly stuff you love and ch...]]>
etedprince@perthleadership.org (etedprince) Cosmology Fri, 03 Feb 2017 21:34:32 +0000
Earth’s clouds expose us to ET! http://perthleadership.org/easyblog/entry/earth-s-clouds-expose-us-to-et http://perthleadership.org/easyblog/entry/earth-s-clouds-expose-us-to-et
Dr. Stephen Hawking has just warned us against contacting aliens . I’m sure you have heard of him ? He’s the famous cosmologist who has ALS and a doughty approach to life notwithstanding. He’s also known for being an iconoclast. He believes (as do I) that it is certain that there are numerous ETs out there. And he thinks we should do nothing to enc...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sat, 15 Oct 2016 12:49:59 +0000
Who owns Mars? http://perthleadership.org/easyblog/entry/who-owns-mars http://perthleadership.org/easyblog/entry/who-owns-mars
Did you hear that China intends to land on the Moon and to have a base there by 2020 ? That’s only 4 years’ time. Your freshman kids won’t even have finished college by then….. And of course, SpaceX intends to have a settlement on Mars by 2024 . Maybe the explosion of its rocket recently will put a dampener on that, but personally I doubt it. I thi...]]>
etedprince@perthleadership.org (etedprince) Sustainability Sat, 10 Sep 2016 14:41:49 +0000
Noah’s Ark on a stick is how we get to the stars - soon http://perthleadership.org/easyblog/entry/noah-s-ark-on-a-stick-is-how-we-get-to-the-stars-soon http://perthleadership.org/easyblog/entry/noah-s-ark-on-a-stick-is-how-we-get-to-the-stars-soon
I guess you saw that the latest in the Star Trek movie series ( Star Trek Beyond ) has just come out? It’s a hardy perennial, even though everybody knows that the travel to the stars isn’t possible for us humans because it would take so long to get there. When the first Trekkie came out, that was a true statement. Now with several companies girding...]]>
etedprince@perthleadership.org (etedprince) Cosmology Sat, 06 Aug 2016 16:34:19 +0000
Gravitational Waves Reveal We’re Worth Reconnoitering http://perthleadership.org/easyblog/entry/gravitational-waves-reveal-we-re-worth-reconnoitering http://perthleadership.org/easyblog/entry/gravitational-waves-reveal-we-re-worth-reconnoitering
See that scientists have just discovered the existence of gravitational waves ? Well, hopefully. They also announced the same discovery a couple of years ago but then retracted it (see my post “ Dust on Your Lens: Gravitational Waves and Cognitive Biases ”). But assuming this time it’s for real; it’s a pretty amazing feat. To wit, they detected two...]]>
etedprince@perthleadership.org (etedprince) Popular Culture Sat, 05 Mar 2016 14:24:23 +0000