原推：In a saner world the libertarians would be as excited about this stuff as we are about fireproof metal hardware wallets. Self-sovereign local community biodefense as an alternative to centralized lockdowns and quarantines.
That world is still possible! https://t.co/ZcXvod14vc
New wall-mounted Buterin-Wu Fixture (Open-Source Upper Room UVGI) design. Can be up to 150cm long, more tightly controlled UV irradiation zone, can be made locally, out of local materials, for under $25 with a lower cost diode laser engraver like this:
kickstarter.com/projects/21295… https://t.co/oS3lwZXWf2
https://twitter.com/VitalikButerin/status/1527347521739116544