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Joined 3 years ago
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Cake day: July 16th, 2023

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  • It doesnt look like returning the devices has to be immediate or convenient. Heres my proposed plan:

    Ban devices entirely. Any item discovered gets confiscated, labeled, and placed in a bin in the office (achieving the “secure” location requirement of the bill.) Students are permitted to label their item. Items are available for pickup weekly at the end of a district-wide midday “value of education” parental education session.

    Labelmaker: ~$200/school

    Labels: $0.01/item

    2 hrs labor weekly: 38×2×$50=$3800/district/year

    Value of inconveniencing parents enough to care: priceless.












  • Your acceptable concentration is about 1*10^-28.

    The world’s largest freshwater lake is lake Baikal, with a volume of 22995 km^3. Adult humans have a bladder volume of about 350 ml. If a single person pees in this lake once, that’s a concentration of about 1.5*10-17, or about 150 billion times too pissy.

    Reverse osmosis and distillation have fairly complimentary strengths and weaknesses. RO removes about 99% of contaminants, distillation removes about 99.9%. two passes each of RO and distillation and your treated single-piss lake Baikal water is now down to about 1*10^-27 piss, or still about 10x too pissy for you.

    This analysis assumes that you consider piss to not include the water molecules that carry it. If you have a “once piss always piss” policy, I’d be willing to bet that a pretty significant portion of water to have gone through an animal at least once.