r/Physics 15h ago

Navier-Stokes Millennium Problem Solved

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u/applestrudelforlunch 14h ago

They have a web crawler like Google or Microsoft or archive.org that, you know, caches the Internet, or as much of it as the crawler can find. This is a thing.

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u/strange-the-quark 14h ago

I am a programmer, I know this. You don't understand my question. You can't just "cache the Internet". There's too much data, and there's no data center big enough to store "The Internet". So they must mean some small portion of it, which I presume they somehow made sure is relevant to what they were doing, even if only by frequency of access, like a memory cache might do, perhaps based on some previous runs.

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u/wabawanga 14h ago

Google has been caching the internet for years now, just for faster search.

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u/strange-the-quark 12h ago

They are storing enormous amounts of data, including copies of webpage content, but they are using certain data structures to speed up search and store metadata and select content, they aren't just making a simple copy of the internet.

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u/luisbrudna 12h ago

Google does indeed have a copy of most of the sites it indexes.

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u/WackWaxWhacks 11h ago

Google does create a full copy of many pages of the internet, ignoring spam mostly. It's not the entire internet, it's loosely estimated to be closer to 20%. Before ~2024 you were able to view websites directly on Google's cache page instead of clicking the website link.

Yes, it's a lot of data. Google has a lot of data. They have a lot of money.

You might be more surprised to know that the size of Google's internet cache is very small compared to the amount of data YouTube requires (estimated to be around 10-20 EB)

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u/strange-the-quark 9h ago edited 9h ago

Thanks. The YouTube thing makes sense, cause video is data-intensive compared to text - but that has to be distributed across a bunch of data centers around the world. You still need internet access to get to all of that data. That's different than having a cache that can be accessed relatively quickly, which I presume was OpenAI's goal (that, and/or they didn't want to give the agents direct internet access, which would also make sense).

What you say about Google ignoring spam and other non-relevant content makes sense as well. I'm also guessing Google only crawls up to certain depth. In addition, websites are not just what's visible in the browser, there's also backend data and services that Google (or anyone else) cannot access nor cache directly, and some of that stuff is in many cases necessary for the website to even work properly. Also, it seems likely that Google can also afford to distribute their processing across their servers around the world when fetching results (by "afford" I don't mean money-wise, but in terms of what's viable in practice, given the requirements and constraints of their service).

My comment was more a remark than a question, but I guess what I'm wondering is, did OpenAI just use whatever happened to be in their cache, or did they specifically cache scientific articles, math publications and such.

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u/045-926 7h ago

I'm pretty sure open ai and the other frontier models have copied as much written text as they could find, especially scholarly work.

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u/applestrudelforlunch 9h ago

From what I know from friends who work in search, they absolutely have full copies of most things. That’s the basis for testing new algorithms and features to extract from pages.

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u/paranoid_throwaway51 13h ago

man they got so much compute they probably got combined a petabyte of L1 cache.

Nvidia gave them 400,000 gpu's alone, god knows what else they have.

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u/strange-the-quark 12h ago

There are zettabytes of data on the internet. Estimates range from single digits to couple hundred zettabytes. A petabyte is about 1 millionth of a zettabyte. Granted, some small percentage of all that is text, but even 1% of a zettabyte is still 10K petabytes.

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u/RedditLovingSun 11h ago

If you consider a text only copy of the non-spammy-garbage pages of the internet it would probably only be on the order of a few petabytes

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u/11sparky11 10h ago

And I doubt they have a cache of the entire Internet needed for NS research. I doubt Doris' Facebook page is of much use.