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They make glass that can be turned opaque electronically. That's probably ideal (albeit more expensive) https://en.m.wikipedia.org/wiki/Smart_glass https://en.

They make glass that can be turned opaque electronically. That's probably ideal (albeit more expensive) https://en.m.wikipedia.org/wiki/Smart_glass https://en.m.wikipedia.org/wiki/Smart_glass

yawgmoth 9y ago
They also make blinds :-)
- metaphorm 9y ago
  or as we like to call it these days "smart curtains".