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Cake day: June 6th, 2024

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  • The model we currently have for the universe goes well beyond anything we could learn with our natural senses and the way we intuitively think about the world because of those senses.

    It’s true that we keep refining our models and it’s very possible that an alien would have slightly different models, but at the end of the day, we are trying to describe the same universe and those models are going to overlap a lot because of that.


  • First of all, there has been a lot of research into what the minimal set of assumptions you need is to reproduce what we consider “basic math” and also what happens if you tweak those assumptions.

    Second of all, the main goal for science and the type of math we use for science is to effectively model the world we live in.

    Any aliens that live in the same universe are subject to the same physics, and any civilization advanced enough to detect our messages will know some basic universal facts about the world, and those facts are what we hope to use as the basis for starting communication.













  • It is a lot more like water than you think. The solution of “just cut the circuit” is like solving the problem of overflowing storm drains by “just plug the pipe”.

    The power has to go somewhere. If you don’t do anything about it, the voltage in the cables will rise until things start to fry. Real world power balancing involves adjusting the output of power plants (e.g. how much fuel to burn) in response to changes, and in some cases, dumping power into the ground as safely as possible. This problem gets complicated when power grids span vast distances and involve many different power plants that all need to be in sync or things catch on fire.

    In the case of solar power, this is part of why improved large-scale battery technology is so important. It lets you absorb the excess power at peak generation times, and then release that power at night.