Arista's Andy Bechtolsheim Says AI Optics Demand Is Just Beginning
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Fireside Alpha shares remarks from Arista's Andy Bechtolsheim, who says AI has made optics demand roughly tenfold larger in five years and that another order of magnitude in bandwidth is needed. A companion post cites Meta's Reels watch-time gains from better recommendation models.
Original post · 1 min read
$ANET Andy Bechtolsheim says AI has made optics demand about 10 times bigger in five years and the industry is only at the "very beginning"
"So I guess I don't need to tell you that AI has been driving this incredible increase in demand for high-speed optics, which is probably now 10 times bigger than it used to be five years ago..."
"And what I want to talk to you today is that we're not at the end of this journey, but rather the very beginning. There's easily another order of magnitude increase in bits needed for the next generation kind of data centers."
"So what I want to talk about first is what's happening at the data center level, and how we as an industry have to get together to solve these problems of this very rapid and high demand growth as fast as possible, since AI can't wait."
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For full set of takeaways to Andy's AI Datacenter and Optics lecture: firesidealpha.substack.com/p/aristas-andy-bech…
"So I guess I don't need to tell you that AI has been driving this incredible increase in demand for high-speed optics, which is probably now 10 times bigger than it used to be five years ago..."
"And what I want to talk to you today is that we're not at the end of this journey, but rather the very beginning. There's easily another order of magnitude increase in bits needed for the next generation kind of data centers."
"So what I want to talk about first is what's happening at the data center level, and how we as an industry have to get together to solve these problems of this very rapid and high demand growth as fast as possible, since AI can't wait."
______
For full set of takeaways to Andy's AI Datacenter and Optics lecture: firesidealpha.substack.com/p/aristas-andy-bech…
Fireside Alpha @firesidealpha$META Devansh Tandon reveals the tokens-in, engagement-out flywheel behind Meta's recommendation system, where better models lift Reels watch time 30% and the monetization pays for the next training run
"These scaling curves aren't just academic research. They're driving real product impact at scale for some of the biggest consumer businesses in the world."
"Here's a couple of examples I have from Meta's recent earnings reports. Instagram Reels had a strong quarter, 30% year on year watch time."
"And the optimizations we made to improve the quality of recommendations included simplifying ou…
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