Before we can make good predictions we’ll need to know more than the DNA. We’ll need to know, and understand, their epigenetics, which is just now beginning to be studied and remains poorly understood, and quite possibly additional layers of complexity we haven’t even imagined yet. Life is incredibly complex and not easily simplified. Still, I expect we’ll find knowing just the DNA will be useful for a fair amount of things, just not as many as had been hoped.
The question in my mind is “who thought DNA revelation could be a universal predictor of future disease”
A few perhaps, but most , no