this post was submitted on 19 Aug 2024
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This is a great question, in that it made me wonder why the Fediverse hasn't come up with a distributed search engine yet. I can see the general shape of a system, and it'd require some novel solutions to keep it scalable while still allowing reasonably complex queries. The biggest problems with search engines is that they're all scanning the entire internet and generating a huge percent of all internet traffic; they're all creating their own indexes, which is computationally expensive; their indexes are huge, which is space-expensive; and quality query results require a fair amount of computing resources.
A distributed search engine, with something like a DHT for the index, with partitioning and replication, and a moderation system to control bad actors and trojan nodes. DDG and SearX are sort of front ends for a system like this, except that they just hand off the queries to one (or two) of the big monolithic engines.
We'd love to build a distributed search engine, but it would be too slow I think. When you send us a query we go and search 8 billion+ pages, and bring back the top 10, 20....up to 1,000 results. For a good service we need to do that in 200ms, and thus one needs to centralise the index. It took years, several iterations and our carefully designed algos & architecture to make something so fast. No doubt Google, Bing, Yandex & Baidu went through similar hoops. Maybe, I'm wrong and/or someone can make it work with our API.
I think 200ms is an expectation of big tech. I know people have very little patience these days, but if you provided better quality searches in 5 seconds people would probably prefer that over a .2 second response of the crap we’re currently getting from the big guys. Even better if you can make the wait a little fun with some animations, public domain art, or quotes to read while waiting.
This is precisely what made me switch to ChatGPT as my primary "search engine". Even DDG is fucking useless these days if you need anything more complex than a list of popular sites that contain a couple of keywords.