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Cake day: October 6th, 2023

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  • Generally it’s silver reacting with (trace) amounts of sulfur containing gasses in the air to form silver sulfide.

    Silver sulfide isn’t blue, but the colours, and especially the multiple hues are caused by thin-film interference. That’s the same effect that gives soap bubbles that shifting multi-colour effects.

    The only way to remove it, is by grinding off a tiny bit of material, which is what you do when you polish it. The tarnish doesn’t go further than the surface layer, so it’s actually a pretty amazing way to preserve the metal.

    Fun fact: if you ever want to make silver look old, put it in a closed box or bag with a hard boiled (or rotten, but I suggest boiled) egg. Those are high in sulfur compounds and will add months of tarnish in minutes.





  • Also, live-service games endeavour to stay relevant forever.

    For, say, God of War, you’ll eventually be done with it. You’ve played all the things, you put the box on the shelve and move on to another game. But for these forever-games, you can play them forever.

    And that means that if you want to launch a game in that market, you can’t rely on getting players who just put down God of War and want something roughly similar. You need to not only be better than Fortnite, but you need to be sufficiently better than people will abandon years of investement into Fortnite to go play your game.

    The barrier to entry is HUGE, and it’s made much worse by the idea that the new game might dissapear, meaning you wasted months (or, occasionally, days, lol).