Videos in: 2020

We Have the Power to Destroy Ourselves Without the Wisdom to Ensure That We Don't

[4.6.20]

I've been thinking about just how bright our future could be, how science knows almost no limits to what we could achieve, to the durations that we could last, to the portion of the cosmos that we could discover and explore, and to the heights of quality in each of our lives or the types of achievements we could make. . . . It's this vision of this wonderful and vast future that's at stake that inspires me to think more carefully about the risks we face now and the ways that we might imperil all of this with our actions. What things can only our generation or our children's generation do in order to protect this seed of humanity so that we can grow into something even more amazing, to protect our present and thereby protect our future?

TOBY ORD is a senior research fellow in philosophy at Oxford University and author of The Precipice: Existential Risk and the Future of HumanityToby Ord's Edge Bio Page


 

Realism Is False

[1.27.20]

. . . I want to propose that realism is false, and what we're seeing is more like a user interface or a virtual reality headset. Think about a virtual reality game of tennis. You're playing VR tennis with a friend, you both have your headset and body suits on, you see your friend's avatar on a tennis court and you start playing. Your friend hits the tennis ball to you, and you hit the same tennis ball back to your friend, but is your friend seeing exactly the same tennis ball that you're seeing? Well, of course not. There's no public tennis ball. You have some photons being sprayed to your eye by your headset, and those photons are causing your visual system to create your own perception of what you would call a green tennis ball. Your friend has a headset on, which is spraying photons to his eye, and his visual system is creating his own green tennis ball perception.

It turns out that both of those perceptions are coordinated by something else, namely a supercomputer that's sending the photons to both headsets, causing both headsets to work in coordination. . . .

All the things that we would do to say that objects really exist even when they're not perceived hold here in virtual reality. . . . That doesn't mean that the tennis ball exists and has any physical properties when it's not perceived; it just means that there is some objective reality.

DONALD D. HOFFMAN is a full professor of cognitive science at the University of California, Irvine. He is the author, most recently, of The Case Against Reality: Why Evolution Hid the Truth from Our EyesDonald D. Hoffman's Edge Bio Page

 


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