  Since Feynman proposed his parton model in 1969, one of the most pressing
problems in high-energy physics has been whether partons are quarks. It is
shown that the quark model and the parton model are two different
manifestations of one covariant entity. The nature of transition from the
confined quarks to plasma-like partons is studied in terms of the entropy and
temperature coming from the time-separation variable. According to Einstein,
the time-separation variable exists wherever there is a spatial separation, but
it is not observed in the present form of quantum mechanics. It belongs to
Feynman's rest of the universe.
