  I estimate the energy that neutrino heating adds to the outflow that jets
induce in the collapsing core material in core collapse supernovae (CCSNe), and
find that this energy crudely doubles the energy that the jets deposit into the
outer core. I consider the jittering jets explosion mechanism where there are
several stochastic jet-launching episodes, each lasting for about 0.01-0.1
seconds. The collapsing core material passes through the stalled shock at about
100 km and then slowly flows onto the proto-neutron star (NS). I assume that
the proto-NS launches jittering jets, and that the jets break out from the
stalled shock. I examine the boosting process by which the high-pressure gas
inside the stalled shock, the gain region material, expands alongside the jets
and does work on the material that the jets shock, the cocoon. This work is
crudely equal to the energy that the original jets carry. I argue that the
coupling between instabilities, stochastic rotation, magnetic fields, and
jittering jets lead to most CCSN explosions. In other cases, the pre-collapse
core is rapidly rotating and therefore ordered rotation replaces stochastic
rotation and fixed jets replace jittering jets.
