Show notes
This week I welcome on the show two of the most important technologists ever, in any field.
Jeff Dean is Google's Chief Scientist, and through 25 years at the company, has worked on basically the most transformative systems in modern computing: from MapReduce, BigTable, Tensorflow, AlphaChip, to Gemini.
Noam Shazeer invented or co-invented all the main architectures and techniques that are used for modern LLMs: from the Transformer itself, to Mixture of Experts, to Mesh Tensorflow, to Gemini and many other things.
We talk about their 25 years at Google, going from PageRank to MapReduce to the Transformer to MoEs to AlphaChip – and maybe soon to ASI.
My favorite part was Jeff's vision for Pathways, Google’s grand plan for a mutually-reinforcing loop of hardware and algorithmic design and for going past autoregression. That culminates in us imagining *all* of Google-the-company, going through one huge MoE model.
And Noam just bites every bullet: 100x world GDP soon; let’s get a million automated researchers running in the Google datacenter; living to see the year 3000.Watch on Youtube; listen on Apple Podcasts or Spotify.
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Timestamps
00:00:00 - Intro
00:02:44 - Joining Google in 1999
00:05:36 - Future of Moore's Law
00:10:21 - Future TPUs
00:13:13 - Jeff’s undergrad thesis: parallel backprop
00:15:10 - LLMs in 2007
00:23:07 - “Holy s**t” moments
00:29:46 - AI fulfills Google’s original mission
00:34:19 - Doing Search in-context
00:38:32 - The internal coding model
00:39:49 - What will 2027 models do?
00:46:00 - A new architecture every day?
00:49:21 - Automated chip design and intelligence explosion
00:57:31 - Future of inference scaling
01:03:56 - Already doing multi-datacenter runs
01:22:33 - Debugging at scale
01:26:05 - Fast takeoff and superalignment
01:34:40 - A million evil Jeff Deans
01:38:16 - Fun times at Google
01:41:50 - World compute demand in 2030
01:48:21 - Getting back to modularity
01:59:13 - Keeping a giga-MoE in-memory
02:04:09 - All of Google in one model
02:12:43 - What’s missing from distillation
02:18:03 - Open research, pros and cons
02:24:54 - Going the distance
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