2020

S1.E1 ∙ How Big is the Universe?

Sun, Aug 09, 2020

How big is the universe? While it is generally known that the universe is very big, the latest science reveals that its true size defies all comprehension. We tackle the question of how big the universe is, whether or not it is infinite, and what the consequence are for us all if it is. If the universe is big enough, it guarantees the existence of aliens, mirror Earths, and even copies of you living in the distant past and far future.

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S1.E2 ∙ Are we Alone?

Tue, Aug 11, 2020

Are we alone? Might Earth be the sole exception to an otherwise dead universe? We shouldn't be. The ingredients for life are everywhere - life should be common. But then, where is everyone? We explore the three possible answers to this question. By the time you finish, you will have a firm grasp of the relevant science, enough to form an opinion on which answer is probably right.

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S1.E3 ∙ Will AI Take Over?

Sun, Aug 30, 2020

Artificial Intelligence has achieved extraordinary feats. Given the current state and trajectory of AI, for how much longer can humans remain the most intelligent creature on Earth? We explore that question. We review the areas where AI has already achieved superhuman abilities, and cover the dwindling areas where humans still hold an edge. It is a most-pressing question. Though we have held the title of "most intelligent species" for a hundred thousand years, we could be relieved of this title in a few decades.

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S1.E4 ∙ Is Aging Curable?

Tue, Sep 01, 2020

Can aging be cured? Eternal youth has long been a dream. Now, through modern science, humanity is on the verge of curing aging and achieving immortality. We've extended lifespans of organisms ten-fold, used drugs to shave years off people's age, reprogrammed cells to become youthful, and we are developing tools that could one day enable digital immortality. Is it possible to live forever, should we even try? We explore those questions.

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S1.E5 ∙ What is Time?

Fri, Sep 04, 2020

What is time? Few things are so familiar and mysterious. Time is the most common noun in the English language. Our lives are governed by time, and yet we have so little understanding of it. We consider what science has to tell us about time. We find that it is stranger than anyone could have imagined, at least, anyone before Einstein.

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S1.E6 ∙ Is there an Afterlife?

Thu, Sep 10, 2020

Is there an afterlife or is this the only life we get? Most believe science says there is no afterlife. But this view, while common, is wrong. We will consider the question of what we experience after death. Is there an afterlife? Do we resurrect to heaven, reincarnate as another being, unite with god, or might we experience nothing at all? Modern scientific theories have shed mew light on this age-old question.

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S1.E7 ∙ Is the Universe Fine-Tuned?

Tue, Oct 20, 2020

Was the universe made for life? In other words, were physical laws and constants of nature somehow chosen to allow for complex life? Over the last century, physicists and cosmologists made a series of disturbing discoveries: cosmic coincidences. They found that parameters of nature and physical law seen specially crafted to make life possible. What are the implications? Are we just very lucky? Was the universe designed for us. Or, might it imply the existence of other unseen universes. We review the latest data and theories to find answers to these questions.

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S1.E8 ∙ What is the Meaning of Life?

Fri, Dec 04, 2020

What is the meaning of life? It's a question everyone has wondered about at some point in their life. Is there even an answer? Each of us has somehow found our way into this world. But for what purpose or reason are we here? What's the point of it all? Is there inherent significance or value to life and existence? Here we will review the answers and use the best available evidence in an attempt to settle this timeless question. An answer to this question will enable us to better understand each other, to know the direction and aim of humanity and technology, and to know what is truly valuable so we can get the most out of life.

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S1.E9 ∙ Why Does Anything Exist?

Mon, Mar 15, 2021

Why does anything exist? Why is there something rather than nothing? Wouldn't nothing have been so much easier? Every society in every time has wrestled with this dilemma. It's our most enduring question. For we all seek to know: why we are here? We will review the latest answers and use the best available evidence in an attempt to settle this ageless question. With an answer to this question we can orientate ourselves in reality, and understand the reason behind it all. An answer to this question would tell us not only why we exist, but also what else exists, both within the universe we see and beyond.

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