 very easy to nail it you have to take a lot of tests there's like i mean it's early on if you're just present with like hallucinations that could be a variety of things or just the cognitive problems that could be alzheimer's versus parkinsonism and that becomes a little nebulous but once you start manifesting the hallmark motor symptoms right slow movement rigidity mass faces hypophonia i mean if a med student did not pick parkinson's on the test they'd be remediated