I read your link and felt optimism. I have a degree in information management. I believe looking for patterns in data is a much more scientific theory than using theories (such as the use of embryos.)

Peggy, your example is incorrect. The correct truth would be, "all people die." Some die of heart problems, strokes, and cancer. Many people have lived over the age of 100 without having PD. To word it in a more meaningful sence, All people die. The average United States Citizen life span is ???. Of these ??? die of primary effects of Parkinson symptoms.

Now to break it down further, Of those who die, ??? had the LRRK2 mutation.
Of those with the LRRK2 mutation, ??? were also exposed to ???. Those who died without the mutation were exposed to more ??? (or a second ???,) than those with the mutation.

This could be a proof to solve to discover the cause of Parkinson.

Debi, please keep us posted with MJF research and his foundations openness to improving how facts are discovered and used.