Battling plant extinction

More money on average means bigger houses, more expensive cars, and fancier restaurants. But what if you look at relative spending instead of total dollars?

This is how Airbnb visitors judge location, which provides a view into where city centers begin and end.

If it seems like every day you log in to Facebook, it’s someone’s birthday, you’re probably not that far off.

I wanted to see how daily patterns emerge at the individual level and how a person’s entire day plays out. So I simulated 1,000 of them.