There are probably lots of people who have Tarlov cysts, for their entire lives, and never even know it. Lots of cysts are discovered as a result of having an MRI done on a certain part of their body, perhaps for a cause that has nothing to do with the cyst. As well, there are lots of cysts discovered as a result of an MRI of a certain part of their body, say their low back, because they're having issues with their low back, and it's discovered that their low back issues are the result of their Tarlov cyst. I think that some people who have symptomatic cysts may be able to work in some fields, depending largely on the location of the cyst, the size of the cyst, and how long the cyst has been at the size that it is at, if it is at a size that is pressing on other nerves around it. If a person has a cyst that is of a significant size that is pressing on the other nerves around it, and has been doing so for an extended period of time, then the chances are very high that it has caused damage to those other nerves, and I would say that if they're at that point, the likelihood of them being able to do work in any field for any considerable length of time isn't going to be very good. Due to, what I consider the main symptom of a symptomatic Tarlov cyst, which would be the pain. As for what percentage of people that I think work in any field, I'm unable to answer that. Because as I said in the beginning, there are lots of people who have Tarlov cysts that are asymptomatic, and if they're asymptomatic, then they fall in the equation of people with Tarlov cysts who are working, even though they don't know that they have them, and it's my opinion that there's really not a way to answer that question.