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This mind-bending tour of metaphysics applies philosophy to the forefront of today's knowledge. Over the course of 24 fascinating lectures, Professor Johnson thinks through the big questions about humans and the universe: The relationship between the mind and the brain, how consciousness emerges from neurochemical processes, the existence of God, human free will, the possibility of time travel, and whether we live in a multiverse or even a computer simulation.

The Great Courses has produced thousands of lectures that have introduced millions of lifelong learners to some of the biggest and most fascinating ideas that humans have ever thought. Now, enjoy 36 lectures specially curated from some of our most popular courses and get an interesting learning experience across a wide range of disciplines.

In very recent times humanity has learnt a vast amount about the universe, the past and itself. But through our remarkable successes in acquiring knowledge we have learned how much we have yet to learn: the science we have, for example, addresses just five per cent of the universe, pre-history is still being revealed, with thousands of historical sites yet to be explored, and the new neurosciences of mind and brain are just beginning.

Nothing in the universe is more complex than life. Throughout the skies, in oceans, and across lands, life is endlessly on the move. In its myriad forms—from cells to human beings, social structures, and ecosystems—life is open-ended, evolving, unpredictable, yet adaptive and self-sustaining. Complexity theory addresses the mysteries that animate science, philosophy, and metaphysics: how this teeming array of existence, from the infinitesimal to the infinite, is in fact a seamless living whole and what our place, as conscious beings, is within it.

Have you ever wondered how off-key you are while singing in the shower? Or if your Bob Dylan albums really sound better on vinyl? Or why certain songs make you cry? Now, scientist and musician John Powell invites you on an entertaining journey through the world of music. Discover what distinguishes music from plain old noise, how scales help you memorize songs, what the humble recorder teaches you about timbre (assuming your suffering listeners don’t break it first), and more.

The Nobel laureate Otto Warburg was widely regarded in his day as one of the most important biochemists of the 20th century, a man whose research was integral to humanity’s understanding of cancer. He was also among the most despised figures in Nazi Germany. As a Jewish homosexual living openly with his male partner, Warburg represented all that the Third Reich abhorred. Yet Hitler and his top advisors dreaded cancer, and protected Warburg in the hope that he could cure it.

The story of our world and the different living things that have populated it is an amazing epic with millions of species, exotic settings, planet-wide cataclysms, and surprising plot twists. These 36 lectures tell the all-embracing story of life on Earth - its origins, extinctions, and evolutions - in a manner that assumes no background in science. At half an hour per lecture, you’ll cover the entire 4.54-billion-year history of Earth in 18 hours, averaging 70,000 years per second!

It seems like an impossible task: secure a safe future for life on Earth, at a scale and speed that the world has never seen, in the face of vast and powerful forces-not just oil tycoons and governments, but the changing climate system itself. The odds are against us, and we are running out of time. But it doesn't have to be this way. Around the world, geophysicists and mathematicians, oceanographers and meteorologists, engineers, economists, psychologists and philosophers have been using their expertise to develop a deep understanding of the crises we face.

The enchanted island of Corfu was home to Gerald Durrell and his family for five years before the Second World War. For the passionate young zoologist, Corfu was a natural paradise, teeming with strange birds and beasts that he could collect watch and care for. But life was not without its problems - Gerald’s family often objected to his animal-collecting activities, especially when the beasts wound up in the family’s villa or even worse - the fridge.

One of the greatest scientific feats of our era is the astonishing progress made in understanding biology-the intricate machinery of life-a progress to which the period we are living in right now has contributed the most.As you read these words, researchers are delving ever deeper into the workings of living systems, turning their discoveries into new medical treatments, improved methods of growing food, and innovative products that are already changing the world.

Michael Shellenberger has been fighting for a greener planet for decades. He helped save the world’s last unprotected redwoods. He co-created the predecessor to today’s Green New Deal. And he led a successful effort by climate scientists and activists to keep nuclear plants operating, preventing a spike of emissions. But in 2019, as some claimed "billions of people are going to die", contributing to rising anxiety, including among adolescents, Shellenberger decided that he needed to speak out to separate science from fiction.

In the most authoritative book ever written about Apollo, David Whitehouse reveals the true drama behind the mission, telling the story in the words of those who took part - based around exclusive interviews with the key players. This enthralling book takes us from the early rocket pioneers to the shock America received from the Soviets' launch of the first satellite, Sputnik; from the race to put the first person into space, through President Kennedy's enthusiasm and later doubts, to the astronauts' intense competition to leave the first footprint.

A couple working six months per year for 50 hours per week on 20 acres can net $25,000 to $30,000 per year with an investment equivalent to the price of one new medium-sized tractor. Seldom has agriculture held out such a plum. In a day when mainline farm experts predict the continued demise of the family farm, the pastured poultry opportunity shines like a beacon in the night, guiding the way to a brighter future.

The incredible true story of the card-counting mathematics professor who taught the world how to beat the dealer and, as the first of the great quantitative investors, ushered in a revolution on Wall Street.

In Consilience (a word that originally meant "jumping together"), Edward O. Wilson renews the Enlightenment's search for a unified theory of knowledge in disciplines that range from physics to biology, the social sciences and the humanities. Using the natural sciences as his model, Wilson forges dramatic links between fields. Presenting the latest findings in prose of wonderful clarity and oratorical eloquence, and synthesizing it into a dazzling whole, Consilience is science in the path-clearing traditions of Newton, Einstein, and Richard Feynman.

A nature therapy session for the soul—encounter the benevolence of the living world through 12 essays on the Earth-healing powers of self-compassion and empathy. 

The Bigger Picture is an accessible, entertaining and nuanced trip into the world of psychedelics. We’re beginning to understand what psychedelics can do for our minds, but The Bigger Picture takes us a step further and explores what psychedelics can do to help us make sense of the world and the crises we face.

Sixty-six million years ago the dinosaurs were wiped from the face of the earth. Today a new generation of dinosaur hunters, armed with cutting-edge technology, is piecing together the complete story of how the dinosaurs created a hugely successful empire that lasted for around 150 million years.

In Zero, science journalist Charles Seife follows this innocent-looking number from its birth as an Eastern philosophical concept to its struggle for acceptance in Europe, its rise and transcendence in the West, and its ever-present threat to modern physics. 

Griffith paints an inspiring yet practical picture of empowered local communities acting collectively when it comes to renewable energy, and benefiting financially. He considers both equity and security – an end to dependence on foreign oil, for instance. He explores the rejuvenation of regional Australia, as well as the rise of a new populist movement driven by Australian women. And he explodes once and for all the trees v. jobs binary. This is an electrifying essay about building a better world, one community at a time.