Safari Live - Day 121 | National Geographic

So, John, how has the role of the presidency changed over the last several hundreds of years? It’s changed dramatically. First of all, when the founders created the presidency, they left it kind of loose. They weren’t exactly very specific about what a p…

[Music] I was born and raised in the chaotic streets of Mexico City. This is Jorge Kanyes, an activist. He’s standing at an intersection in Mexico City, wearing a black mask and a cape. I was an ordinary citizen until one day I went to a lucha libre match…

We usually let the startups in each batch decide when they want to launch. Um, so most of the startups in the winter ‘17 batch haven’t announced yet. But, um, there is one female founder who has announced her company. Um, it’s called Simple Habit. It is a…

Bitcoin down, Twitter below 20,000. We have a slew of, uh, crypto CEOs that are resigning. Those are the signals right now. It feels pretty bad. Why are you bullish? What are the bullish signs that you’re seeing? [Music] [Applause] [Music] Kevin, you fu…

We already know the derivatives of sine and cosine. We know that the derivative with respect to x of sine of x is equal to cosine of x. We know that the derivative with respect to x of cosine of x is equal to negative sine of x. So, what we want to do in…

Although he never considered himself a philosopher, Marcus Aurelius’ writings have become one of the most significant ancient Stoic scriptures. His ‘Meditations’ contain a series of notes to himself based on Stoic ideas, one of which is embracing fate and…