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Lex Fridman · 2019-12-21 · 1h 18m

Sebastian Thrun: Flying Cars, Autonomous Vehicles, and Education | Lex Fridman Podcast #59

Sebastian Thrun on building self-driving cars, flying cars, and democratizing education, plus why he loves being alive in this era.

Sebastian Thrun: Flying Cars, Autonomous Vehicles, and Education | Lex Fridman Podcast #59
The guest

Sebastian Thrun — Roboticist, computer scientist, and educator who led Stanford's DARPA-winning autonomous car and the Google self-driving car program. He co-founded Udacity and is CEO of flying-car company Kitty Hawk.

The gist

Sebastian Thrun traces his path from an early calculator program to launching three revolutions: autonomous vehicles, online education, and electric flying cars (eVTOLs). He explains how machine learning replaced rule-based expert systems, why the DARPA Grand Challenge's outcome-based funding reset the self-driving industry, and how disciplined testing and time management let his Stanford team win. He argues AI is a focused pattern-recognition tool that can make novices instant experts (e.g., iPhone skin-cancer detection) rather than a path to general intelligence or human suppression. He shares the vision behind Udacity scholarships and Kitty Hawk's quiet, affordable, autonomous flying cars, closing with gratitude for living in a uniquely prosperous era.

Big reveals

  • Thrun's Stanford team won by focusing on machine learning and software while rivals chased better hardware.
  • Stanley kept committing suicide every 30 miles due to two computer clocks occasionally drifting backwards.
  • The team froze its system a full month before the race and used that time to shake out bugs, unlike every rival.
  • Solving 90% of self-driving is easy in a weekend, but the last fractions of a percent are the unacceptable killers.
  • A doctor's iPhone running Thrun's skin-cancer app caught a melanoma the doctor had judged harmless.
  • Kitty Hawk's Heaviside can fly 100 miles with 30% reserves, at 38 decibels, potentially 10x faster than driving.
  • Thrun insists flying cars must be 100% autonomous and centrally managed: 'you don't want idiots like me flying in the sky.'

Things worth remembering

  • No scientist has ever been able to write down the rules of human gait, yet we all learn to walk.
  • Old self-driving research was effort-funded, so teams were trained to produce stacks of paper no one would read.
  • You can already order a driverless (safety-driver) Lyft in Las Vegas with the right app setting.
  • Self-driving engineers were valued at roughly $10 million each in acqui-hires by GM Cruise, Uber, and others.
  • Thrun's team trained a network on 129,000 biopsied skin images to match top dermatologists at cancer detection.
  • Heaviside has eight motors, so losing one still lets it take off and land safely, unlike a helicopter's single 'Jesus bolt'.
  • Adding 100 virtual sky lanes is just a software recompile; stacking 100 physical highway lanes would cost a year of world GDP.
  • Steven Pinker credits Carl Bosch's nitrogen fertilization with saving over two billion lives.
  • For most of humanity's 300,000 years, life expectancy was about 30; nearly everything we cherish was invented in the last 150 years.

Recommended in this episode

Books, products and media the guest or host genuinely endorsed here — with the buy link.

Affiliate link — we may earn a commission at no extra cost to you.

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