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One of the rich­est men in the world wants you to drink used toi­let water.

Recy­cled used toi­let water, at least. The ” OmniProces­sor” is just one of the kooky ideas to come from the brain of Bill Gates since he all but retired from Microsoft, the com­pa­ny he co-founded.

With an esti­mat­ed net worth of more than $136 bil­lion, Gates is one of the rich­est men in the world and also, at least judg­ing by his habit­u­al efforts to solve every prob­lem fac­ing human­i­ty, one of the most knowledgeable.