The Internet Has Massively Broadened Career Possibilities

James is interested in weather conditions and whether the downtown train he sometimes takes runs on time. For a year, James records weather each day: is it sunny, cloudy, rainy, or snowy, as well as whether this train arrives on time or is delayed. His re…

We’ll start with Kirsty. Kirsty: Hi everyone! I’m Kirsty Nathu. I’m the CFO at Y Combinator, so I look after all of Y Combinator’s monies and help the startups with their money questions. Elizabeth: I’m Elizabeth Irans. I’m just a part-time partner at Y…

Warren Buffett says the three most important words in investing are “margin of safety.” It’s no doubt the margin of safety is an integral concept used extensively by value investors, both past and present. We’re talking people like Charlie Munger, Warren …

So, I have a rectangle drawn right over here, and my goal is to split this rectangle up into smaller equal squares. The way that I’m going to do that is by first dividing this rectangle into two rows—two equal rows—and then I’m going to divide this rectan…

This is a chart that shows the percentage of the total population of each of these colonies and then later states that was made up by enslaved Africans starting in the year 1754, which will show in purple, and comparing that to the year 1800, which we’ll …

Hey, Vsauce. Michael here. And today we’re going to discuss déjà vu. What is it, and why does it occur? You know, those moments where the current situation feels like it’s happened before? You’re certain it has, but you don’t know when, or how it became s…