me I've never heard of that but I'm wondering whether anybody is looking at these 30% of cases that are idiopathic whether there's any chance that there was a blood vessel in the brain that actually collapsed because of because I heard a blood pressure drop and medication was a strong antihypertensive at the same time actually caused blood pressure blood pressure to drop in and blood flow to the brain to be kind of off to that or that part of the brain we kind of because there wasn't sufficient planning for this yeah so it's a