Huh, have you ever wondered what a sandwich sounds like?

Not much to it, is there?

Unless, of course, it's a Walker's sandwich.

Mmm, that is good.

Now that's what Asani should sound like.

Go all crisp in with walkers.

Delicious.

Hi there, I'm Jason Gatz and you're listening to Think Again, a Big Think

podcast.

Since 2008, Big Think has been bringing you big ideas in small concentrated doses from some

of the most creative thinkers around.

On the Think Again podcast, we step outside of our comfort zone, surprising our guests and me, your host, with ideas

that we didn't necessarily come here prepared to discuss

based on interview clips from our archives chosen by our producers.

Today, I am very, very happy to be here with James Glick.

He is one of our most staggeringly great living science writers. He's the author of

the information, a history, a theory, a flood. His first book, Chaos, was a National Book Award

and Pulitzer Prize finalist and the national bestseller. His other books include the bestselling biographies, Genius, The Life and Science of Richard

Feynman, and Isaac Newton, both shortlisted for the Pulitzer Prize.

James' new book, Time Travel, A History, is an utterly fascinating journey through the history of

an idea that has become part of the fabric of philosophy, science,

and our daily lives, even though we can't really do it yet. Not really.

...