Lex Fridman Podcast #186 – Bryan Johnson: Kernel Brain-Computer Interfaces
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May 24, 2021 
Bryan Johnson, founder and CEO of Kernel and a pioneer in brain-computer interfaces, delves into cutting-edge technology that could revolutionize our understanding of the brain. He discusses the innovative Kernel Flow, which aims to collect and analyze brain data for personal growth. The conversation touches on the ethics of brain data, the evolution of intelligence, and how dietary choices can enhance cognitive health. With humor and personal insights, Johnson explores the potential of BCIs in improving mental health and fostering deep human connections.
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Wearing Kernel Flow
- Lex Fridman and Bryan Johnson wear Kernel Flow brain-computer interfaces.
- Johnson tells jokes, and Fridman tries not to smile, while the devices record their brain activity.
Kernel Flow Technology
- Kernel Flow uses time-domain spectroscopy, similar to LiDAR, to measure brain activity.
- It images blood oxygenation changes as neurons fire, providing functional brain imaging.
Brain Data's Potential
- Fridman is excited about brain data's potential for creating products that improve lives.
- He feels "heard" by the machine, sensing a deeper recording than words can express.
