2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91887Uncertainty relations are shown to have nothing specific for quantum mechanics, being the general property valid for arbitrary function. A wave function of a particle having precisely defined position and momentum in QM simultaneously is demonstrated. Interference on two slits in a screen is shown to exist in classical mechanics. A nonlinear classical system of equations replacing QM Schrödinger equation is suggested. This approach is shown to have nothing in common with Bohmian mechanics.5 pages 2 figures in the text, slightly edited and added three sections in reply to a referee reportQuantum Physicstext