Double slit experiments do not justify the abandonment of Classical Physics and the creation of Quantum Mechanics. The interference patterns, which supposedly demonstrate the unique nature of \"elementary\" particles, are faithfully reproduced with common objects.
Correctly applied i.e., without neglecting internal energy, Classical Physics provides a deterministic and unitary description of virtually all quantum phenomena. Classical Physics also explains relativistic effects, i.e., mass increase, length contraction and time dilation without recourse to particular hypotheses like the existence of aether. The components of \"elementary\" particles are bound by cohesion forces propagating through quanta. The energy of quanta increases with particle velocity according to the Doppler Effect. As a result, the relativistic energy and mass of an \"elementary\" particle are proportional to the Lorentz factor. This mass increase causes length contraction and time dilation.
