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10 Paradoxes That Will Stretch Your Mind

As in physics, paradoxes in biology really are just unsolved puzzles. Enter Peto’s paradox. Biologist Richard Peto noticed in the 1970s that mice had a much higher rate of cancer than humans do, which doesn’t make any sense. Humans have over 1,000 times as many cells as mice, and cancer is simply a rogue cell that goes on multiplying out of control. One would expect humans to be more likely to get cancer than smaller creatures such as mice. This paradox occurs across all species, too: blue whales are much less likely to get cancer than humans, even though they have many more cells in their bodies.

Fermi paradox

Named after physicist superstar Enrico Fermi, the Fermi paradox is the contradiction between how likely alien life is in the universe and its apparent absence. Considering the billions of stars in the galaxy like the sun, the many Earth-like planets that must be orbiting some of those stars, the likelihood that some of those planets developed life, the likelihood that some of that life is as intelligent or more intelligent than humanity, the galaxy should be teeming with alien civilizations. This absence led Fermi to pose the question, “Where is everybody?” Some answers to that question are unfortunately a little disturbing.

Why a Type III Civilization Might Be Terrible | Unveiled

Stop Type 3… before it’s too late!! Join us… and find out more!

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In this video, Unveiled takes a closer look at the dark side of the Kardashev Scale! A Type III Civilization might seem as though it should be a dream utopia of endless possibility… but is that really what would happen?? Probably not… and here’s why!

This is Unveiled, giving you incredible answers to extraordinary questions!

Find more amazing videos for your curiosity here:
Why Scientists Think They’ll Find an Alien City Very Soon — https://youtu.be/lNQxBQoi4wc.
Did Scientists Already Discover a Type IV Civilization? — https://youtu.be/EjQAmV8VSQg.

0:00 Intro.

Exo-Stellar Civilizations

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Our future in the galaxy is typically envisioned as tied to the stars, be it on planets orbiting them or vast megastructures fueled by the alien suns, and yet the true future of humanity might be to dwell in the vast gulfs between the stars or even in a galaxy in which those stars have ceased to exist.

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Listen or Download the audio of this episode from Soundcloud: Episode’s Audio-only version: https://soundcloud.com/isaac-arthur-148927746/exo-stellar-civilizations.
Episode’s Narration-only version: https://soundcloud.com/isaac-arthur-148927746/exo-stellar-ci…ation-only.

Credits:
Exo-Stellar Civilizations.
Science & Futurism with Isaac Arthur.
Episode 281a, March 14, 2021
Written, Produced & Narrated by Isaac Arthur.

Editors:
Jason Burbank.
Jerry Guern.
Keith Blockus.
S. Kopperud.

Cover Art:

Civilizations at the Beginning of Time

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Our Universe is billions of years older than our planet, and we often contemplate alien civilizations that might have arisen early than us in our galaxy, but just how early could life have arisen?

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Listen or Download the audio of this episode from Soundcloud:
Episode’s Audio-only version: https://soundcloud.com/isaac-arthur-148927746/civilizations-…ng-of-time.
Episode’s Narration-only version: https://soundcloud.com/isaac-arthur-148927746/civilizations-…ation-only.

Credits:
Civilizations at the Beginning of Time.
Science & Futurism with Isaac Arthur.
Episode 272; January 7, 2021
Produced, Written, and Narrated by Isaac Arthur.

Editors:
Jason Burbank.
Jerry Guern https://www.youtube.com/watch?v=mxgArWbEhZg.
Keith Blockus.

Cover Art:

Why Have We Not Found Any Aliens? — with Keith Cooper

After six decades of examining signals from space, why have we yet to discover evidence of extra-terrestrial life?
Keith’s book “The Contact Paradox: Challenging our Assumptions in the Search for Extraterrestrial Intelligence” is available now — https://geni.us/JFpy.

For the past six decades a small cadre of researchers have been on a quest, as part of SETI, to search for extraterrestrial intelligence. So far, SETI has found no evidence of extraterrestrial life, but with more than a hundred billion stars in our Galaxy alone to search, the odds of quick success are stacked against us.

Keith Cooper explores how far SETI has come since its modest beginnings, where it’s going and the assumptions that we make in our search for extraterrestrial life.

Watch the Q&A: https://youtu.be/_qEjTXrQ7vs.

Keith Cooper is a freelance science journalist and editor. Since 2006 Keith has been the Editor of Astronomy Now, and he is also the Editor of Astrobiology Magazine. In addition he has written on numerous space-and physics-related topics, from exploding stars to quantum computers, for Centauri Dreams, New Scientist, Physics World, physicsworld.com and Sky and Telescope. He holds a BSc in Physics with Astrophysics from the University of Manchester.

This talk was filmed in the Ri on 22 November 2019.

Traces of ancient ocean discovered on Mars

A recently released set of topography maps provides new evidence for an ancient northern ocean on Mars. The maps offer the strongest case yet that the planet once experienced sea-level rise consistent with an extended warm and wet climate, not the harsh, frozen landscape that exists today.

“What immediately comes to mind as one the most significant points here is that the existence of an ocean of this size means a higher potential for life,” said Benjamin Cardenas, assistant professor of geosciences at Penn State and lead author on the study recently published in the Journal of Geophysical Research: Planets.

“It also tells us about the ancient climate and its evolution. Based on these findings, we know there had to have been a period when it was warm enough and the atmosphere was thick enough to support this much liquid water at one time.”

Fermi Paradox Great Filters: Rare Earth

We continue our look at possible explanations why life may be very rare in the Universe by examining our planet itself, and looking at which of its characteristic might be important to intelligence developing and how improbable those traits are for a given planet in a given solar system.

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Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier.

Graphics Team:
Edward Nardella.
Jarred Eagley.
Justin Dixon.
Katie Byrne.
Misho Yordanov.
Murat Mamkegh.
Pierre Demet.
Sergio Botero.
Stefan Blandin.

Script Editing:
Andy Popescu.
Connor Hogan.
Edward Nardella.
Eustratius Graham.
Gregory Leal.
Jefferson Eagley.
Luca de Rosa.
Michael Gusevsky.
Mitch Armstrong.
MolbOrg.
Naomi Kern.
Philip Baldock.
Sigmund Kopperud.
Steve Cardon.
Tiffany Penner.

Music:
Lombus, “Cosmic Soup“
Markus Junnikkala, “A Memory of Earth“
AJ Prasad, “Aether“
Lombus, “Hydrogen Sonata“
Dan McLeod, NeptuneUK, “Mysterious Universe“
Kevin MacLeod, “Spacial Winds”

Will AI Reveal Extraterrestrial Intelligence Far Beyond Our Level of Consciousness?

“Machine learning provides a way of providing almost human-like intuition to huge data sets. One valuable application is for tasks where it’s difficult to write a specific algorithm to search for something—human faces, for instance, or perhaps ” something strange,” wrote astrophysicist and Director of the Penn State University Extraterrestrial Intelligence Center, Jason Wright in an email to The Daily Galaxy. ” In this case, you can train a machine-learning algorithm to recognize certain things you expect to see in a data set,” Wright explains, ” and ask it for things that don’t fit those expectations, or perhaps that match your expectations of a technosignature.

Crowdsourcing Alien Structures

For instance,’ Wright notes, theoretical physicist Paul Davies has suggested crowdsourcing the task of looking for alien structures or artifacts on the Moon by posting imaging data on a site like Zooniverse and looking for anomalies. Some researchers (led by Daniel Angerhausen) have instead trained machine-learning algorithms to recognize common terrain features, and report back things it doesn’t recognize, essentially automating that task. Sure enough, the algorithm can identify real signs of technology on the Moon—like the Apollo landing sites!