"South Korean toilet turns excrement into power and digital currency"

 From the New York Post:

ULSAN, South Korea, July 9 – Using a toilet can pay for your coffee or buy you bananas at a university in South Korea, where human waste is being used to help power a building.

Cho Jae-weon, an urban and environmental engineering professor at the Ulsan National Institute of Science and Technology (UNIST), has designed an eco-friendly toilet connected to a laboratory that uses excrement to produce biogas and manure.

The BeeVi toilet – a portmanteau of the words bee and vision – uses a vacuum pump to send faeces into an underground tank, reducing water use. There, microorganisms break down the waste to methane, which becomes a source of energy for the building, powering a gas stove, hot-water boiler and solid oxide fuel cell.

“If we think out of the box, feces has precious value to make energy and manure. I have put this value into ecological circulation,” Cho said....

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See also the third great bubble of the age of bubbles:

So You Are Well Versed In South Sea Bubble Lore, Know Law and the Mississippi Madness But Do You Recall....

...The Dutch 'Wind-trade', which also popped and dropped during those memorable months of 1719 - 1720?
From Professor (Erasmus U., Rotterdam) David Smant's personal website:

DUTCH MIRROR OF FOLLY, Windhandel 1720

 

 ....MUCH MORE

At the Rijksmuseum:

Windhandel 1720

 

....MUCH MORE