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Joined 3 年前
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Cake day: 2023年2月2日

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  • “Energy contained in coal” doesn’t make any sense. Is it “energy we could get from burning coal if it was 100% efficient”? “Energy we could get from coal if we could use it in a nuclear reaction”?

    Coal (anything) doesn’t “contain” energy. We can transform some things, and some transformations produce energy in some form or another.

    The upper line of this graph should be labeled “total energy liberated by burning coal” and the lower one “useful energy liberated by burning coal”.


  • Pifpafpouf@lemmy.mlBannedtoComic Strips@lemmy.worldLeap Day – The Jenkins
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    2 年前

    Love how nobody got the joke

    When DST ends you set your clock back 1 hour (or it does it automatically nowadays) in the middle of the night, gaining 1 hour of extra sleep

    The joke here is that the guy did the same for Leap Day, setting his clock back 24 hours and gaining 24 hours of sleep, so when his boss called at 2pm he was in the middle of his ~32h night


  • Pifpafpouf@lemmy.mlBannedtoMemes@lemmy.mlBlockchain: the wave of the future
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    2 年前

    A blockchain is only as secure as the amount of work (= processing power) that goes into it. Anyone with 51% of the processing power invested in a blockchain can attack it and essentially steal from other people. For cryptocurrencies it’s a problem that solves itself, because every person that possesses some of the cryptocurrency is incentivized to mine to keep it secure (and to earn some at the same time). The more your cryptocurrency is valuable, the more people will want to mine it and the more secure it will be.

    For anything other than cryptocurrencies, you can’t incentivize a huge number of people to commit computing power to secure your blockchain. So you have to protect it some other way, for example only allowing you and some trusted people to write on it. But then it doesn’t really need to be a blockchain anymore, just a write-only database (which will perform better and occupy less space).

    If it requires no work to generate a block at the end of your blockchain, any attacker can generate malicious ones.






  • BG3 had a day-one patch, and is at its 6th hotfix now. Does it make it a broken game?

    With the scale of modern AAA games it is inevitable, if a studio had to wait until every bug in a game the size of Starfield was fixed to release it, it would simply never release. You have to decide at some point that the game is in a releasable state, and at this moment you start printing discs, then you keep working on it and fixing bugs and that constitues the day-one patch. And don’t worry about the expansion, they started working on it long before the release.


  • A day-one patch is the day of the release, so it counts as included in the release in my books.

    It doesn’t mean « they haven’t done enough testing before physical production », it means they took advantage of the inevitable several weeks or months between start of physical printing and release.

    And of course a patch 1 year after release is fine. What I’m saying is that I prefer a broken game that is fixed on release day over a broken game that is fixed 1 year later.