16:45 On light pollution. Just because you can afford to buy a cheap LED floodlight doesn't mean you have the right to shine light all over the surrounding countryside all night, yes, even if you are you so stupid that you think it protects your business! See also Ally Berry on Atmospheric Rivers . Subscribe to Symbiosys TX . Some of this is to make datacenters so assholes can pretend they're biologists: Subscribe to FUTO .