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Re:MIT invents $4 solar desalination device by deltree7 on Wednesday August 03, 2022 @12:32PM (#32333856)
$1 / week / person means for $50* or $400 Billion per year (or 0.4% of World GDP) we solve the water problem. Of course at that scale we may bring the cost down
Re:MIT invents $4 solar desalination device by adrianN on Wednesday August 03, 2022 @12:45PM (#32334013)
You assume that one of these devices produces enough water for one person.
Re:MIT invents $4 solar desalination device by grraaaaahhh on Wednesday August 03, 2022 @12:49PM (#32334072)
"Researchers from MIT and China have developed a solar desalination device that could provide a family of four with all the drinking water it needs — and it can be made from just $4 worth of materials"

My dude, it's the first words in the article.

Re:MIT invents $4 solar desalination device by adrianN on Wednesday August 03, 2022 @01:08PM (#32334335)
People need a lot more water than drinking water. Most water is used for agriculture. Each time I flush my toilet I use enough water to keep me alive a week.
Re:MIT invents $4 solar desalination device by happyopossum on Wednesday August 10, 2022 @11:46PM (#32421335)
There’s no reason your toilet needs to use clean drinkable water - it only does today because that’s what we have the infrastructure to deliver.