• 0 Posts
  • 60 Comments
Joined 1 year ago
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Cake day: July 24th, 2023

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  • Short answer:
    It gave us compiler explorer, now that it has served its purpose we should stop doing it.

    Long answer:

    Why does hft even exist?

    Hft can exist because most stock markets react to requests as fast as possible and have no noticable fees for certain use cases. This means algorithms that do simple trades like if goggle goes up, buy other tech companies or buy any stock that goes up in europe on the NY market can make small profits if they are faster than everyone else.

    Does it have any value?

    There is one exchange that imposes a delay on every request, effectively inhibiting hft, and its opening actually improved market conditions on all exchanges. This implies it has negative value.
    They also spend millions on hardware, tools and developers to skim small sums of many transaction on the stock market. They are effectively a (very inefficient) tax on the stock market that goes to improving C++ compilers and funding hardware startups.









  • The new version seems to fix that since your comment was written, but it will stil panics if less than 2 samples are provided, unless the crate it wraps panics at an earlier point.

    let peak = buf
                .iter()
                .copied()
                .enumerate()
                .take(self.sample_count / 2)
                .max_by_key(|(_, s)| (s.abs() * 1000.0) as u32)
                .expect("to have at least 1 sample");
    





  • EVs only eliminate tail pipe pollution, otherwise they are more of the same.
    They are multi ton metal boxes rolling on rubber wheels over asphalt roads, often to transport a single person. The create the same amount of traffic and waste the same amount of land on parking. Due to their heavy battery and better acceleration they create more fine particulates of wheel rubber.

    EV are a Verkehrsrichtungsänderung, a Verkehrswende consists of trains and public transit.


  • optimal design for actual humans to live and work

    And H designs are just somehow aesthetically unpleasing to me personally (for real).

    Because I agree with those points I resigned it by flipping the edges:

    .║ ║ ║
    .║ ║ ║
    .╚═╬═╝
    . ║
    .══╩══

    If we orient it south and try to distribute sunlight fairly we may get something like this:

    . ║
    .║ ║ ║
    .╚═╬═╝
    . ║
    .╚═╩═╝