Sub-Genius
http://www.jinfo.org/Nobels_Physics.html
“Western civilization, it seems to me, stands by two great heritages. One is the scientific spirit of adventure — the adventure into the unknown, an unknown which must be recognized as being unknown in order to be explored; the demand that the unanswerable mysteries of the universe remain unanswered; the attitude that all is uncertain; to summarize it — the humility of the intellect. The other great heritage is Christian ethics — the basis of action on love, the brotherhood of all men, the value of the individual — the humility of the spirit.”
Richard Feynman, Sub-Genius

The Ashkenazim carry some interesting genetic variations. Since they were a small group, the gene pool was constricted, almost ‘inbred’ if you will. One of these variations leads to Tay-Sachs.
Another one, or maybe the same variation in a heterozygous configuration, leads to extraordinary genius and talent.
it’s off the scale