[harry8]

Yes genetics are not the only necessary condition which means it also is not a sufficient condition. Obviously so. Charles Darwin didn't need to sequence DNA to observe heritable characteristics. I strongly doubt sequencing Jordan's DNA will tell you anything at our current tech levels.

MJ is 6'7", fast, athletic and well coordinated. Several million people in the USA grew up loving playing baskeball, were well coached and well nourished.

We may well have missed a better MJ, or Einstein, Hendrix or Terry Tao or whoever you like due to them never getting a chance for all the reasons that can happen and that is an ongoing tragedy. One we as a species have been steadily and slowly fixing (albeit with some big dramatic setbacks) over the past 100 years or so. Long may that continue.