Hey git - don't you like a causal universe?
Lorentz Invariance demands a finite lightspeed. Given any achievable velocities V1 and V2 and any finite lightspeed, the bound on the relative velocities of V1 and V2 as viewed by any inertial observer cannot exceed
(V1 + V2)/[1 +(V1)(V2)/c^2]
This is transformation of velocities parallel to the direction of motion. For velocities at an arbitrary angle theta, Jackson gives
u_parallel = (u'_parallel + v)/(1+(v dot u')/c^2)
u_perp = u'_perp/(gamma_v(1+(v dot u')/c^2))
http://www.physics.umanitoba.ca/~souther/waves02/feb0402/sld011.htm
Observed permittivity and permeability of the vacuum set a value for the finite lightspeed.
If you have a physics that does not include Lorentz Invariance and still contains useful stuff like Maxwell's Equations, post it. BTW,
thermodynamics + Bekenstein bound = General Relativity
so you need also rewrite all of chemistry or information theory, too.
