When I fell in love with geology, I developed a new relationship with TIME. It’s not just the vastness of Earth history that blew my mind— it’s imagining all that’s happened, all that’s transpired to make the Earth what it is today. In her book, Timefulness, Marcia Bjornerud captures this idea as well as anyone I’ve ever met. I had to talk to her. She’s my new favorite person.Learn more about your ad choices. Visit megaphone.fm/adchoices