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Cake day: June 29th, 2023

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  • Well, I think most of them are trying to get the government to split the bill, which I don’t love but I could live with. If they get small scale nuclear working, we might finally actually reduce fossil fuel usage for once

    I just feel like the other shoe is about to drop. Are they going to push to run them themselves, with minimal oversight? Do billionaires want to buy privately owned nuclear reactors for their bunkers?

    I don’t know how this is going to turn bad, I just have a bad feeling





  • I heard a really great description of this the other day

    Imagine you’re an ant. Your world is small and scent based, your life is simple and straightforward

    Now imagine you experienced a human perspective. You feel the stress and anxiety of something as abstract as money, you know of events on the other side of the world - you understand that there is a world, and how walking in one direction long enough would bring you back here. You see the beauty of the sunset, and dream of traveling to space

    You see how humans see ants

    You also understand where food is stored, what ant traps are, and the layout of the surrounding area your colony has yet to explore - things incredibly useful for an ant

    Now you’re an ant again. Your ant brain can’t hold onto this knowledge, but you have a notion of what you saw.

    You know you found all the food everywhere, and learned of hidden dangers to your colony… But you can’t remember the knowledge. You saw impossible ways to travel, but they no longer make any sense. You know the humans see you as pests, just minor annoyances in lives filled with emotions you don’t understand. You know they were scared of something… But what could threaten such a being? Another ant touches you to see if you’re alright, and you want to scream and vomit using organs you don’t have

    That’s cosmic horror



  • The problem with health insurance as a metaphor is they have real costs… The insurance company does pay out real money every time you use your policy, and that makes it easy to muddy the issue

    Let’s take the coffee metaphor further. They say “you can drink up to 400ml of coffee, past that we’ll add an extra fee. But don’t worry, no one does that”. Then they refill your coffee without saying a word, they won’t tell you how much you’ve used unless you ask, and they won’t stop refilling it unless you tell them not to

    The reason the coffee metaphor is great is because, while it’s a real thing, it costs them basically nothing. Just like the extra electricity to send your data costs basically nothing

    The cost is the number of coffee pots, the labor, the restaurant - all things that don’t change in cost no matter how much coffee you drink

    Coffee works because the nature of the transaction is the same


  • Ironically, he picked a metaphor that doesn’t support his point at all

    If you go to a Starbucks, it’s like you’re buying a set amount of data. You don’t expect unlimited refills, because that’s not how the transaction works - you buy the coffee by volume. It’s yours with no strings attached

    If you go to a restaurant, you buy access to coffee. I do expect unlimited coffee, I would be livid if they charged by the cup. However, you do not get to expect to take any coffee with you - you’re using their “infrastructure” to hold your coffee, and you don’t get to walk out with the cup. You don’t get to share it with the restaurant or the table - you’re burying a personal “subscription” to coffee for the duration of your stay

    Coffee, like data, is effectively free at a restaurant. They must pay for the infrastructure, but after that each additional pot only costs a few cents. They must make at least 1 pot a day, and a human can’t safely drink more than a couple pots in a day (which is an obscene amount only the heaviest caffeine addicts could tolerate). You get it one small cup at a time, if you bought a second cup you could double the rate of coffee delivery… They might even just give it to you for free, because it costs them so little and they want you to come back

    You purchase access to coffee for a time, or you purchase coffee by volume. They shouldn’t be allowed to charge for both - maybe if you’ve drank 14 cups and others want coffee, they should be given priority during lunch rush as the rate of coffee production is limited by infrastructure

    It’s actually a pretty decent metaphor, it just doesn’t support his argument at all


  • Well Google was basically that - it revolutionized search, which made the Internet accessible for casual users

    And it worked - Google put more into R&D moon shots than anyone… Except the economic META has changed, and everything innovative just ended up in the Google graveyard before it had a chance to mature

    Bell Labs worked because they threw excess piles of money at the best people they could find, and they gave them autonomy. They gave them time, and let them build things with no clear application for their company

    Today, that money goes into stock buybacks, executive bonuses, and buying out promising startups. Stock prices this quarter are all that matters, and R&D only raises stock prices when it promises insane growth or quick monetization



  • Because hashes are deterministic one way functions - they’re generally one way only

    Let’s say I hash a picture. It could go from 14MB to 128 digits of base 64 - there’s orders of magnitude less information in the hash than in the source data

    Now - with that hash can you rebuild the picture? You’ve lost a great deal of information, you don’t necessarily even know the size or the format of the input.

    Let’s set up an equation - x is the input (the photo), so hash_func(x) = hashx

    There are multiple, maybe infinite (depending on the hashing function) values of x that will solve our equation. In the case of the photo, most of it will be random combinations of pixels that mean nothing to a human. There could also randomly be things that appear meaningful, but without knowing more about the original you could never be sure if you have the correct answer

    Now, passwords might actually be shorter than the resulting hash, but we salt them so each password hash function works differently, and can still destroy information from the original password. Part of the password and the salt are then used as basically the seed for a deterministic random function to generate this extra information

    Again, you have the dual problem of a huge problem space as well as an inability to be sure you have the original input or just another solution

    Ultimately, everything is defeatable, and if you can narrow down the problem space (say, by knowing the length of a password, having enough known before and after data, or finding a bias in the algorithm), you can reduce the needed computations by orders of magnitude and make it feasible. Quantum computers also grow exponentially with chained qbits, so I expect someone clever will figure it out sooner or later