  This paper discusses possible phenomenological implications for p+A and A+A
collisions of the results of recent numerical AdS/CFT calculations examining
asymmetric collisions of planar shocks. In view of the extreme Lorentz
contraction, we model highly relativistic heavy ion collisions (HICs) as a
superposition of collisions between many near-independent transverse "pixels"
with differing incident longitudinal momenta. It was found that also for
asymmetric collisions the hydrodynamization time is in good approximation a
proper time, just like for symmetric collisions, depending on the geometric
mean of the longitudinally integrated energy densities of the incident
projectiles. For realistic collisions with fluctuations in the initial energy
densities, these results imply a substantial increase in the hydrodynamization
time for highly asymmetric pixels. However, even in this case the local
hydrodynamization time still is significantly smaller than perturbative results
for the thermalization time.
