I'm curious if its actually polishing for 18 months, or if its a few days of polishing, followed by a few days inspection, on and off.* I can't imagine they sim

I'm curious if its actually polishing for 18 months, or if its a few days of polishing, followed by a few days inspection, on and off.* I can't imagine they simply turn it on and let it run for a year and a half non-stop. * Or some other tempo of alternation.