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Anne's mental map.

Bill Limpisathian is a professor of cartography and specializes in a brand new field – map cognition, or how we use and see and think about maps in the brain.

Google maps versus paper maps

The debate is cartographer today is about which is better — a paper map, or a digital one? Cartographer Mamata Akella argues that there are merits and downsides to both.

Physicist Carlo Rovelli travels to the core of a black hole, where the arrow of time reverses and a white hole is born.   

Time may be a fundamental quality of the universe, but physicists still can't explain what time is. That hasn't stopped theoretical physicist Marcelo Gleiser from devoting much of his life to studying the origins of time and the formation of the cosmos.

Yuria Celidwen

Yuria Celidwen has a wide-ranging critique of how the modern psychedelic movement is taking shape. She was the lead author of a recent article in Lancet arguing for new ethical guidelines for using psychedelics — what she calls “spirit medicine.”

Maria Sabina

The story of Mazotec healer Maria Sabina is a notorious example of how psychedelic enthusiasts have exploited the knowledge of Indigenous cultures they don’t really understand.

Bradley Lomax and Judith Heumann

Sami Schalk is the author of “Black Disability Politics,” a history of disability rights and Black activism. She says understanding Black disability politics is essential to building an accessible future.

feet

Rae Johnson is a somatic movement therapist and the author of “Embodied Activism.” They say the process of making change is more sustainable when you listen to your body. 

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