Is humanity getting better or worse?
There are lots of ways to amplify our senses, from hallucinogens to cochlear implants. A few people are taking it further, creating original sensory experiences by implanting new technologies in their bodies.
Artist Neil Harbisson is greyscale color blind. He designed a new electronic body part that would help him experience color.
If you want to hear about the art Neil makes thanks to his new sense, here's his extended interview.
Cathy N. Davidson is the author of "Now You See It: How the Brain Science of Attention Will Transform the Way We Live, Work, and Learn." She tells Anne Strainchamps why "attention blindness" matters.
David Thorpe is a filmmaker who went in search of his voice. Specifically, he wanted to know why he and many other gay men ended up markers of a "gay voice"—one with precise enunciation and sibilant "s" sounds. He spoke with his family and several speech therapists to better understand, control, and inhabit his voice.
Robin Chase is the co-founder of ZipCar. Her Dangerous Idea? A universal basic income.
Chris Gore is the so-called "pit bull of movie journalism," and the creator of "Film Threat" magazine. He's also the screenwriter and producer of "My Big Fat Independent Movie."
David Schmader thinks "Showgirls" is the most brilliant bad movie ever made. He did a commentary for the new DVD edition and tells Steve Paulson why it's so hilarious.
Irish poet Dennis O'Driscoll has eight books of poetry. The latest one is "New and Selected Poems."