We revisit the theoretical priors used for inferring Dark Energy (DE)
parameters. Any DE model must have some form of a tracker mechanism such that
it behaved as matter or radiation in the past. Otherwise, the model is
fine-tuned. We construct a model-independent parametrization that takes this
prior into account and allows for a relatively sudden transition between
radiation/matter to DE behavior. We match the parametrization with current
data, and deduce that the adiabatic and effective sound speeds of DE play an
important role in inferring the cosmological parameters. We find that there is
a preferred transition redshift of 1+zβ29β30, and some reduction in the
Hubble and Large Scale Structure tensions.Comment: 51 Pages, 11 figures, 19 Tables including appendices, Comments are
welcome, references and footnote adde