this post was submitted on 16 Oct 2023
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One letter per bit? You'd need some crazy effective compression algorithm for that, because a bit is 1 or 0. Did you mean byte?
UTF-8 and ASCII are normally already 1 character per byte. With great file compression, you could probably reach 2 characters per byte, or one every 4 bits. One character every bit is probably impossible. Maybe with some sort of AI file compression, using an AI's knowledge of the English language to predict the message.
Edit: Wow, apparently that already exists, and it can achieve even higher of a compression ratio, almost 10:1! (with 1gb of UTF-8 (8 bit) text from Wikipedia) bellard.org/nncp/
If an average book has 70k 5 character words, this could compress it to around 303 kb, meaning you could fit 1.6 million books in 64 gb.
You can get a 2tb ssd for around $70. With this compression scheme you could fit 52 million books on it.
I'm not sure if I've interpreted the speed data right, but It looks like it would take around a minute to decode each book on a 3090. It would take about a year to encode all of the books on the 2tb ssd if you used 50 a100s (~$9000 each). You could also use 100 3090s to achieve around the same speed (~$1000 each)
52 million books is around the number of books written in the past 20 years, worldwide. All stored for $70 (+$100k of graphics cards)
There's something comical about the low low price of $70 (+$100k of graphics cards) still leaving out the year of time it will take.
Well I guess you could sacrifice a portion for an index system and just decode the one you're trying to read