This week we're talking to Sarah Kaufman, Assistant Director at the NYU Rudin Center for Transportation. Kaufman believes that transportation is about to experience a sea change and that, in the end, New York and other urban areas will have to adapt or fail.

This week on Technotopia we present Cindy Gallop, founder of MakeLoveNotPorn. We talk about sex tech and the problem of connection in an over-connected society.

On this week's show we talk with Andrew Zimmern, a chef and traveler. Zimmern believes that food culture is now the driving force behind the future of ecology and the environment and that everyone has the right to good, wholesome food.

Richard Clarke is a former White House cybersecurity expert and one of the most interesting people I've talked to on the podcast. His next book, Warning, will be out May 23. In this episode he talks about the "sentinel personality" and what it takes to tell the world something terrible is about to happen.

This week on Technotopia I talk to Greg Mark, founder of Markforge. Mark has made 3D printers that can make carbon fiber and true metal parts at a fraction of the cost of traditional printers. It's an amazing technology and he's a really cool guy.

This week we bring back a great interview with Makerbot founder Bre Pettis on the future of manufacturing.

Richard Florida is a professor and writer and his latest book, The New Urban Crisis, looks at the way cities can expand and grow with technology and innovation. You can pick up his book now.

This episode we talk to Peter Walker, author of How Cycling Can Save the World. He has some fascinating ideas on how future cities can make the most of cycles and ebikes.

This week I talk to Ryan Holiday, author and media columnist for the New York Observer. Ryan has been writing on stoicism and the future of media and he offers a quick and final fix for our social media woes.

This week we talk about Estonian e-residency and the eventual dissolution of borders with entrepreneur Tobias Stone.