Things you better have a damn good reason to do: Intentionally cutting off power to part of a city for 30+ minutes in 30-35°C weather.
Promoted by My power is currently out and I don't know what the reason is but it was announced in advanced, so there's gotta be something, right?
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Update: It's supposed to be up to 45 minutes. The power is still out. I still don't know why.
Update 2: The power is back and youtube has resumed playing Cosmic Dance to celebrate