Michio Kaku is a theoretical physicist, futurist, and professor at the City College of New York. He is the author of many fascinating books on the nature of our reality and the future of our civilization. This conversation is part of the Artificial Intelligence podcast. If you would like to get more information about this podcast go to https://lexfridman.com/ai or connect with @lexfridman on Twitter, LinkedIn, Facebook, Medium, or YouTube where you can watch the video versions of these conversations. If you enjoy the podcast, please rate it 5 stars on Apple Podcasts or support it on Patreon. Here’s the outline with timestamps for this episode (on some players you can click on the timestamp to jump to that point in the episode):

00:00 – Introduction

01:14 – Contact with Aliens in the 21st century

06:36 – Multiverse and Nirvana

09:46 – String Theory

11:07 – Einstein’s God

15:01 – Would aliens hurt us?

17:34 – What would aliens look like?

22:13 – Brain-machine interfaces

27:35 – Existential risk from AI

30:22 – Digital immortality

34:02 – Biological immortality

37:42 – Does mortality give meaning?

43:42 – String theory

47:16 – Universe as a computer and a simulation

53:16 – First human on Mars