Encryption

Nick Szabo is a polymath. He's a computer scientist, legal scholar, and cryptographer best known for his pioneering research in digital contracts and cryptocurrency.

Neil deGrasse Tyson chats with whistleblower Edward Snowden via robotic telepresence from Moscow. The two card-carrying members of the geek community discuss Isaac Newton, the difference between education and learning, and even how knowledge is created. They also dive into the Periodic Table and chemistry, before moving on to the more expected subjects of data