>> yes, it had to do with highly complex, involving significant judgments on how to apply gaap givendership new and rapidly developing industry and i am quoting because i don't want to screw this up but basically saying there are no material issues there are ways to be able to, and i think cowen had the best note, but there are ways to be able to assess how much of what they should be talking about, how much they -- giving the last of it, it has to do with their true fuel cells and i didn't want to see it, obviously, and it is very, very negative when you see this, but it is also, it's not, no one lied to my expectation, i don't think they did, but it's going to take a little while, downgraded on this, each though guidance unchanged and what i care about is guidance unchanged but of course, it's tied to the accounting treatment. >> that doesn't help me a lot. >> it helps other people. >> i studied it, and gave it to my friend the accountant and he said look, it's not that bad and at the same time it is very hard to understand. >> and some people will say i will ask questions later >>