Jeffrey Shainline: Neuromorphic Computing and Optoelectronic Intelligence | Lex Fridman Podcast #225

ℹ️ EPISODE INFO

Released

September 26, 2021

Duration

2h 56m

Channel

Lex Fridman Podcast

Watch on YouTube

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📝 EPISODE DESCRIPTION

Jeffrey Shainline is a physicist at NIST. Please support this podcast by checking out our sponsors:

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Note: Opinions expressed by Jeff do not represent NIST. EPISODE LINKS: Jeff's Website: http://www.shainline.net Jeff's Google Scholar: https://scholar.google.com/citations?user=rnHpY3YAAAAJ Jeff's NIST Page: https://www.nist.gov/people/jeff-shainline PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ Full episodes playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4 Clips playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOeciFP3CBCIEElOJeitOr41 OUTLINE: 0:00 - Introduction 0:44 - How are processors made? 20:02 - Are engineers or physicists more important 22:31 - Super-conductivity 38:18 - Computation 42:55 - Computation vs communication 46:36 - Electrons for computation and light for communication 57:19 - Neuromorphic computing 1:22:11 - What is NIST? 1:25:28 - Implementing super-conductivity 1:33:08 - The future of neuromorphic computing 1:52:41 - Loop neurons 1:58:57 - Machine learning 2:13:23 - Cosmological evolution 2:20:32 - Cosmological natural selection 2:37:53 - Life in the universe 2:45:40 - The rare Earth hypothesis SOCIAL:

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🎤 SPEAKERS

• Lex Fridman

  host

• Jeffrey Shainline

  guest

🧾 EPISODE SUMMARY

In this episode of Lex Fridman Podcast, featuring Lex Fridman and Jeffrey Shainline, Jeffrey Shainline: Neuromorphic Computing and Optoelectronic Intelligence | Lex Fridman Podcast #225 explores superconducting Optoelectronic Brains: Rethinking Computing, Intelligence, and Cosmology Lex Fridman and Jeffrey Shainline explore neuromorphic computing architectures that combine superconducting electronics for computation with light-based communication to emulate key principles of the brain. They contrast traditional semiconductor-based digital computing and Moore’s Law scaling with superconducting Josephson-junction circuits and single-photon detectors operating at 4 Kelvin. Shainline outlines “loop neurons,” an optoelectronic hardware concept designed to capture brain-like network properties such as massive fan-out, fractal spatial/temporal connectivity, synaptic plasticity, and hierarchical modular organization. In the final portion, they zoom out to cosmology, discussing Lee Smolin’s idea of cosmological natural selection and Shainline’s hypothesis that universal constants may be fine-tuned not just for life, but specifically for the emergence of technology capable of creating new universes via black holes.

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