Wall Street Silver @WallStreetSilv
South Korean professor Cho Jae-weon invented a toilet that turns poop into energy and pays people in digital currency. A person defecates~ 500g/day converted into 50 liters of methane gas which generates 0.5 kWh. Toilet users earn Ggool, a literal shit coin. @maxkeiser https://t.co/h2rpFvpjuf — PolitiTweet.org