I am predisposed to dying some time in the future and I do not need to pay an American capitalist hundreds (if not thousands) of dollars to tell me that!
This is just a blatant spin on his part to promote his capitalist wife's company. Now, if this test was given to the 'poor and dispossessed' (Remember them America?) free of charge, then I may read further.
So he supports research into Parkinson's disease because he is likely to get it? Can I also assume he support cure/treatments that cost 1 billion? Gates and Buffet are a rarely in the world of ultra rich.
Everyone is predisposed to some disease and face death in some points in their lives. There are plenty of disease to go around for the R&D money. I would advocate for putting money into find cues for children disease instead of the adults. And the google dude, you got your chance - die off and let some younger generation come and do theirs.