Anyone can be the best...given the right set of circumstances.
smo-joe
I don't think so. It takes a fairly small set of natural skills
(decent hearing, manual dexterity, decent vision, intelligence)
coupled with some personal abilities (attention to detail, a high
threshold for repetition, a very strong and self-motivated work ethic)
all channeled into decades of effort learning the basics of the craft,
the logic, theories and ideas behind how the instruments work. It
also requires the technical ability as a player to test the
instruments to the highest level so that you know what is needed to
attain that type of physical performance. All three I mentioned are
top-notch players, which is a big factor in the equation, IMO (for
similar reasons, Joe Fillisko, Doug Tate, Blackie Shackner and Cham
Ber Huang have also been amongst the finest technicians and
customizers).
Perhaps anyone with the basic physical and mental skills could do all
this, but the fact that very few have would seem to indicate the
opposite.