Maybe you’ve encountered a sink with two faucets, not one. One for decent, one for chilly, with no probability to combine them earlier than you scald or chill your self.
It appears absurd that the parents who discovered the know-how to construct sinks with operating water couldn’t be bothered with the final step of creating it helpful.
However this isn’t the case. Centuries in the past, the new water in a house was suspect. It may need been in an unclean cistern for some time, it’d carry illness–you didn’t wish to combine it with the clear water unintentionally.
Now that we’ve largely nailed the sanitary situations of scorching water, the design is out of date. But it surely persists, as a result of techniques and magnificence and tradition enable it to.
We’re surrounded by out of date design. It’s value asking “what’s it for?” and contemplate what it was once for.
As soon as it’s out of date, good design turns into dangerous design.
