June 30, 2026

Search began as a way to find pages. AI is turning it into a way to ask, reason, decide, and act.
Search has always been more than a technical problem. It is a way of organising knowledge, connecting intent with information, and increasingly, turning questions into actions. In the age of artificial intelligence, that basic function is being redefined.
In this episode of TechSurge, host Sriram Vishwanath speaks with Prabhakar Raghavan, Chief Technologist at Google, about the long arc of search: from the early web and link analysis to knowledge graphs, language models, transformers, Gemini, and the unresolved question of how AI will change the way we find, trust, and use information.
Prabhakar reflects on his career as a computer scientist, researcher, and technology leader, beginning with his time at IBM Research, where he worked on algorithms, optimization, databases, and early information retrieval. He explains how the explosion of unstructured data on the web created a new class of technical and economic problems. Search was not simply about indexing pages; it was about imposing structure on a chaotic information environment and building mechanisms that could connect supply, demand, relevance, authority, and trust.
The conversation traces how early search evolved through link analysis and PageRank, drawing on ideas from scholarly citation analysis, graph theory, and algorithmic ranking. Prabhakar describes why authority and trust became central to search as the web grew, and why users themselves changed alongside the technology. As search engines became more capable, people moved from looking for simple webpages to asking richer, more contextual questions that required intent understanding rather than mere document retrieval.
Sriram and Prabhakar then explore the transition from classical search to AI-infused products. Through examples such as Gmail Smart Reply, Smart Compose, Google Drive recommendations, and knowledge graphs, Prabhakar shows how prediction, context, and language modelling were already reshaping user experiences well before the current generative AI wave. These systems were early signals of a broader shift: computers moving from retrieving information to anticipating what users might need next.
The episode also offers a technical tour of the major algorithmic milestones that led to today’s AI systems, including deep learning, sequence-to-sequence models, attention mechanisms, transformers, and the compute architectures needed to train and serve large models. Prabhakar explains why attention changed the quality of language modelling, why AI systems appear increasingly conversational, and why compute remains one of the central constraints in the field.
At the heart of the discussion is the central tension facing search today: if AI systems can generate answers directly, what becomes of search as we know it? Prabhakar does not frame AI as the end of search, but as its next transformation. The future of search may be less about finding a page and more about understanding intent, synthesising knowledge, reasoning through ambiguity, and helping users complete complex tasks.
The conversation closes with deeper questions about AI world models, hallucination, test-time compute, diffusion models, recursive self-improvement, theorem proving, and whether AI systems can ever reason with the same grounded understanding as humans. For Prabhakar, the challenge is not only to build more powerful models, but to understand their limits, failure modes, and relationship to truth.
This episode is a wide-ranging exploration of how search became one of the defining technologies of the internet age—and how artificial intelligence may now force us to rethink what it means to search at all.
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[00:00:00] Highlights
[00:01:23] Podcast Sponsor
[00:02:50] Introduction
[00:04:08] From Researcher to Operator
[00:06:40] Why Search Became the Core of the Web Economy
[00:10:52] The Explosion of Unstructured Data
[00:12:13] The Market Mechanism Behind Web Search
[00:14:31] Could Anyone Have Predicted Where Search Was Going?
[00:15:24] Yahoo, Google, and the Technical Problem of Search
[00:16:16] PageRank, Link Analysis, and Trust on the Web
[00:18:24] From Citation Analysis to User Behaviour
[00:20:49] Search Was Never Just About the Query
[00:24:58] Larry, Sergey, and the Early Days of Google
[00:26:20] Gmail, Smart Reply, and Early Generative AI
[00:25:10] From Smart Reply to Smart Compose
[00:26:25] Predicting What Users Need Next
[00:29:09] Why Google Saw Context Differently
[00:38:06] The Long Arc from PageRank to Transformers
[00:41:30] From Computer Vision to Machine Translation
[00:42:11] Why Attention Changed AI
[00:44:09] How the Attention Mechanism Works
[00:45:26] Why AI Became a Compute Problem
[00:47:42] Why Better AI Is Not Just Better Token Prediction
[00:49:23] What Comes After Transformers?
[00:50:16] Diffusion Models and the Cost Curve
[00:55:28] How AI Learning Differs from Human Learning
[00:56:37] What AI Still Doesn’t Understand
[00:59:22] Test-Time Compute and Reducing Hallucinations
[00:50:00] Will AI Remain Compute-Constrained?
[01:02:09] Recursive Self-Improvement and Theorem Proving
[01:04:02] Could AI Discover Relativity or Ramanujan’s Identities?
[01:05:07] Is Google an AI-Native Company?
[01:06:49] Physical AI, Waymo, and Robotics
[01:08:38] What Has AI Already Proved Us Wrong About?
[01:10:01] The One AI Prediction He Is Willing to Make
[01:12:01] Advice for Young Entrepreneurs in the AI Era
[01:14:56] Why Fundamental Science Still Matters
[01:15:56] Closing Remarks
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Before 2020, few people thought about supply chains. Now they’re on every boardroom agenda, and few companies have a better view into what changed than FedEx.
Host Michael Marks talks with Raj Subramaniam, only the second CEO in FedEx’s history after founder Fred Smith, about why he calls today’s trade shift “re-globalization,” how the 2025 end of de minimis forced FedEx to hire 2,000 people in three weeks, and why Amazon is a customer rather than a competitor.
They dig into how FedEx turns two petabytes of daily data into predictive logistics, the company’s growing use of physical AI, from trailer-loading robots to autonomous trucks nearing a million miles in Texas, and why Raj insists AI is adding jobs at FedEx, not cutting them.
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For all the competition among AI labs, their primary products are built in much the same way: a large language model is pre-trained on enormous datasets, post-trained, deployed, and refreshed every so often. In 2022, three researchers in Alberta, Canada published a contrarian roadmap for AI that rejects that entire premise.
In this episode of TechSurge, host David Goldman speaks with Patrick Pilarski, who co-wrote the Alberta Plan with Richard Sutton and Michael Bowling. Pilarski is a Canada CIFAR AI Chair, an Amii Fellow, and a professor in the Department of Medicine at the University of Alberta, where his lab builds prosthetic limbs that learn to anticipate what their users intend. In 2017, he was one of three Amii researchers who brought DeepMind’s first international research office to Edmonton, serving as its co-lead until 2023.
The conversation opens with the Alberta Plan’s core premise: an agent that constructs all of its knowledge from its own stream of experience, with no artificial separation between training and deployment, what Pilarski calls “temporal uniformity.” He contrasts this with how today’s major AI labs bolt reinforcement learning onto pre-trained language models during post-training, and addresses head-on why his co-author Rich Sutton has publicly argued that LLMs are a dead end.
Pilarski also breaks news on the podcast: he will soon join ExperienceFlow.AI, a San Francisco-based company with a research lab led scientifically by Richard Sutton, as Head of Edge Superintelligence, focused on bringing continual learning to computing environments where connectivity and compute are limited. He argues that the industry’s massive data center build-out does not lock AI into a single architectural path, and that existing hardware and software stacks have far more flexibility than commonly assumed.
The episode closes with a tour through Pilarski’s own research: how AI-powered prosthetic limbs learn to predict user intent in minutes rather than months, a landmark bone-anchored prosthetic surgery performed in Alberta, and the prospect of supernumerary limbs and wearable technology as a path toward genuine human augmentation. Pilarski also discusses a paper he co-authored arguing that AI agent safety concerns dominating recent headlines are, in fact, reinforcement learning problems the field has studied for decades.
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Every gigawatt of new AI infrastructure now costs $50 to $60 billion to build, roughly $45 billion of which goes straight into GPUs. With more than 400 gigawatts of new compute needed by 2030, the industry faces a roughly $24 trillion capital bill. But according to this week's guest, the real threat to Western AI competitiveness isn't Nvidia, Google, or Broadcom out-maneuvering one another. It's China Inc., which is targeting a cost of under $10 billion per gigawatt, a five- to six-times cost advantage that could reshape who wins the AI infrastructure race.
In this episode of TechSurge, host David Goldman speaks with Raja Koduri, one of the most influential architects in the history of graphics computing. Raja twice led graphics at AMD, directed graphics architecture at Apple, and served as chief architect of Intel's Core and Visual Computing Group. His team helped bring high bandwidth memory to market for AMD's GPUs back in 2015, a technology that now underpins nearly every AI accelerator on the market.
The conversation centers on Raja's new startup, Oxmiq, which he describes as converting "electrons to tokens super efficiently." Raja and David dig into why the bottleneck in AI infrastructure has quietly shifted away from raw compute and toward memory hierarchy, how data moves between SRAM, HBM, and NAND, and between chips, now that models are too large to fit on a single die. Oxmiq's approach uses 3D-stacked, hybrid-bonded memory to unlock 10x the bandwidth of today's HBM and a 10x increase in token generation rate, even on older process nodes.
From there, the discussion turns to how AI coding agents are changing the economics of chip design. Raja argues that spec-writing, once the "boring" 90 percent of the job, is now the hardest and most valuable skill, while writing the code itself is increasingly something agents can handle. He points to OpenAI and Broadcom's Jalapeño chip as evidence that AI-assisted design can compress timelines that used to take multiple generations of custom silicon. Raja also reflects on lessons from building products alongside Steve Jobs at Apple and Lisa Su at AMD, and explains why he believes Intel's decision to kill 3D XPoint memory came at exactly the wrong moment.
The episode closes with Raja's outlook on where AI infrastructure goes next: a future of both massive "token factories" and smaller, personal "token banks," a shift he compares to the transition offices went through with server rooms, becoming invisible infrastructure that simply works. As he puts it, "the more boring you make it, the more it becomes fabulous."
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