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Cake day: June 1st, 2023

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  • The Swedish state-run media puts out a very good comparison between all the parties each election year which I use to understand what position each party has. It’s been generally easy to figure out which party is closest to me using that tool. It can be used for the three tiers of elections that we have in Sweden.

    Other than that I try to look at polls to see whether it would be generally better for me to place a strategic vote on a party that is not my first choice.





  • Consider the following: You have a class A that has a few dependencies it needs. The dependencies B and C never change, but D will generally be different for each time the class needs to be used. You also happen to be using dependency injection in this case. You could either:

    • Inject the dependencies B and C for any call site where you need an instance of A and have a given D, or
    • Create an AFactory, which depends on B and C, having a method create with a parameter D returning A, and then inject that for all call sites where you have a given D.

    This is a stripped example, but one I personally have both seen and productively used frequently at work.

    In this case the AFactory could practically be renamed PartialA and be functionally the same thing.

    You could also imagine a factory that returns different implementations of a given interface based on either static (B and C in the previous example) or dynamic dependencies (D in the previous example).



  • That doesn’t really seem to be a particularly useful study. You could probably find the exact same thing by selecting for owners of very expensive bicycles, but you would be proving exactly the same thing (which is nothing at all).

    A more reasonable approach would be to split into cohorts of different levels of wealth and then compare internally between those cohorts, to see the difference in emissions of an EV owner/transit rider/biker/ICE owner is.

    My gut feeling says that we’d find them ranked on the following order, from lowest emissions to highest:

    1. Biker
    2. Transit rider
    3. EV owner
    4. ICE owner

    It would be interesting to check whether that gut feeling holds in real life, and particularly how much the groups differ on a per-cohort basis.





  • Iceland runs plenty of these and has a nice culture of frequenting the public bathhouse. It’s one of the few things you can do that is actually affordable there.

    They do have the advantage of having essentially infinite clean energy in the form of geothermal heat. As do Japan in many cases, for that matter. I’m sure that has something to do with these institutions having staying power there.

    Anyway, I think this idea has merits, but not as an energy saving measure. The reason for this is that in order to maintain good water quality, you have to shower thoroughly before getting into the bath, negating the potential energy benefits of the initiative. We can bring it back for it being nice, though!