Some theories are so well-established that they are unlikely ever to be fundamentally changed (for example, scientific theories such as evolution, heliocentric theory, cell theory, theory of plate tectonics, germ theory of disease, etc.).
Təmusnawen tiyad aqalnat afal ahusken atiwaga as eqal adobǎt aduten as waraqelnat abada dǎɣ amasnanat amutayan (dǎɣ asikin, təmusnawen ən tənumaɣen atamosnen awiɗan, təmusne tan héliocentrique, təmusne tan əellule, təmusne tan tektonik ən tisayen, asidwil ən ADN, darat awen.