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πFS

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Re: πFS

#81

Earlier quoted context omitted.

Even then I don't see a direct way to extract a list like this.

I think it's safe to assume that dang has access to tools that we mortals are unable to comprehend, without being driven to madness.

For this use case, of finding related threads, I thought he wrote not special tools, but rather uses just

https://hn.algolia.com/

Re: πFS

#82
It is actually not proven that the decimal expansion (or any rational base expansion) of pi contains all possible sequences of numbers. It sounds like it intuitively would be since the expansion is infinite, but it is not necessarily true. For example, the number 0.101001... (i.e., decimal formed by concatenating N zeros and then 1 for all N 0 to infinity) is infinite, never-ending, and irrational but does not contain every sequence of numbers.

Re: πFS

#84

Earlier quoted context omitted.

> Since the file is 128 bits long, one would expect this place to be around the 2*128th bit. > Calculate the number of bits to encode that value using log2(938933556), which is ~29.8 Can someone explain these two statements to me?

for > Calculate the number of bits to encode that value using log2(938933556), which is ~29.8 This is roughly same as saying: "If you rewrite 938933556 as a binary number / usize, it will need 30 bits". Sanity check: 1101111111|0110111111|0100110100 (| delimits every 10 bigits). > Since the file is 128 bits long, one would expect this place to be around the 2*128th bit. This statement is a bit more subtle. As a first…

Thank you!!!

Re: πFS

#86
post #31

Reminds me of when I tried to use the library of babel as a data compression tool. It led me down a fun rabbit hole and was my first introduction to information theory. The conclusion being that you basically need the same amount of data to represent the address of your data as the data itself, so it's not really effective at compression, just a fun thought experiment. The cool part of this in modern times is that LL…

[deleted]

Re: πFS

#87

Earlier quoted context omitted.

for > Calculate the number of bits to encode that value using log2(938933556), which is ~29.8 This is roughly same as saying: "If you rewrite 938933556 as a binary number / usize, it will need 30 bits". Sanity check: 1101111111|0110111111|0100110100 (| delimits every 10 bigits). > Since the file is 128 bits long, one would expect this place to be around the 2*128th bit. This statement is a bit more subtle. As a first…

Thank you!!!

np :-)

Re: πFS

#88
post #81

Earlier quoted context omitted.

I think it's safe to assume that dang has access to tools that we mortals are unable to comprehend, without being driven to madness.

For this use case, of finding related threads, I thought he wrote not special tools, but rather uses just https://hn.algolia.com/

Even using algolia, I don't see a way to generate a list in this exact format.

I think ChrisMarshallNY is right, dang has access to eldritch powers.

Re: πFS

#90
post #46

Related. Others? πfs – A data-free filesystem - https://news.ycombinator.com/item?id=36357466 - June 2023 (107 comments) πfs – A data-free filesystem - https://news.ycombinator.com/item?id=28699499 - Sept 2021 (30 comments) PiFS – The Data-Free Filesystem - https://news.ycombinator.com/item?id=26208704 - Feb 2021 (1 comment) Πfs: Never worry about data again - https://news.ycombinator.com/item?id=21359338 - Oct 2019…

How are you generating these lists

See https://news.ycombinator.com/item?id=44861185 and the links back from there.
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