Mark Zuckerberg on Taking Risks and Finding Talented People

I’m not sure what I expected to find when I went to Chernobyl. I mean, it’s been so long since the nuclear reactor there melted down and spewed radioactive atoms across the land. So for almost thirty years, this place has been virtually abandoned. These d…

We’re told that figure A is a scale image of figure B. So that’s figure A; this is figure B. Here, the scale that maps figure A to figure B is one to two and one half. What is the value of x? All right, pause this video and see if you can figure it out. …

What we’re going to do in this video is think about limits involving trigonometric functions. So, let’s just start with a fairly straightforward one. Let’s find the limit as X approaches Pi of sine of x. Pause the video and see if you can figure this out…

Humanity’s struggle against death has been our most enduring fight. History has given us one weapon in this existential battle: we fight back with medicine. Tens of thousands of years ago, our ancestors scavenged the natural world for remedies. Imagine th…

I’d like to do in this video is talk about the notion of a frame of reference, and this is an introductory video. In future videos, we’ll go into a lot more depth. But a frame of reference is really the idea; it’s a point of view from which you are measu…

You’re young, and everyone is trying to point you in different directions. The problem is most of them are idiots. A society collapses when the wise listen and the idiots give advice. Those who haven’t walked the path can’t tell you what the journey is li…