The debate about the emptiness of space goes back to prehistory science and is epitomized by Aristotelian ‘horror vacui’, which can be seen as precursor ether, whose modern version dynamical quantum vacuum. In this paper, we suggest change a common view ‘gaudium vacui’ discuss how vacuum fluctuations fix value permittivity, ε0, permeability, μ0, modelling their response three-dimensional harmon...