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Universal basic income is a great idea, which is also why it won't happen

Doctor Syntax Silver badge

"lead has been used for plumbing for centuries, certainly well into the last century, and apparently the lead content of the water it carries in pipes is not that great"

The explanation I heard was that in the past houses were not centrally heated and were occupied during the day with intermittent use of water so the water didn't sit in the pipes for long and didn't get warm there. That ensured that the concentration of lead was kept relatively low. A combination of central heating and wives going out to work reversed this so the lead levels could rise but about the same time lead piping started to be replaced by copper.

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