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Cake day: June 18th, 2023

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  • At least the the ships being warships carrying civilians things has a real life analog. Many (but not all) colony ships sailing Earth oceans were usually heavily armed. This was to deter pirates or privateers from raiding the ships the day after they left port and taking all the supplies they’d need for their colony. And the ships were full of women and children. And more than a few got into battles somewhere along their voyage. Then when the colonists got where they were going, in some instances they’d just pull the guns off the ship and set them up to defend the colony.














  • There is no way to do that. You have to have a precise knowledge of the mass of fat and muscle on your bones, the exact quantity of blood and the ability of that blood to transport and deliver oxygen and nutrients into those tissues. IF you want something accurate, you’d have to precisely measure ALL of the food you eat (and water you drink) and know it’s nutrient makeup and then collect ALL the CO2 you breathe for a day and ALL of your urine and feces and test those to see what’s there. From there you can back-calculate and see what your energy surplus/deficit might be.

    Fitness trackers are making assumptions to do those calculations. If you are 30 years old and 5’10" (177.8cm) and weigh 165lbs (74.84kg), then your BMI is 23.7 and you’re probably healthy and it’ll calculate X usage of calories per hour. But that won’t be accurate if you have things like fast or slow metabolism, or heart problems or kidney problems that might affect metabolism indirectly. But it’s accurate enough for most people. The more data you’re willing to put into the equation, like knowing heart rate, breathing rate, sleep, etc. The more accurate the prediction can be, but it won’t be perfect practically ever.