In the former Internet circle, closed-loop and high-tech solutions that can save the world are to be appreciated.
But for a billionaire with a lot of money, this one is dangerous.
First, may attract scammers
Secondly, there are quite a few contradictions that the United States can resolve.
Third, this toilet problem can be solved step by step as a product, 7 years of research and development, 50,000 dollars a piece, this. . .
Finally, the lack of toilets in many places is not because everyone does not want to have them. The lack of toilets is just an appearance.
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