In some classical contexts, Lorentz symmetry emerges from a microscopic Lorentz non-symmetric framework represented as an underlying turbulent fluid. I argue that, with some approximations and in a certain range of the basic parameters, the same intuitive representation is obtained from Landauʼs original form of quantum hydrodynamics. This general picture of the vacuum, where the observed space–time symmetries have a kinetic basis, suggests an alternative reading of the stochastic signal observed in the present ether-drift experiments and, as such, is not a pure speculative issue but might have non-trivial physical implications.