During the 1970s rational expectations appeared to have made previous macroeconomic theory largely obsolete, which culminated with the Lucas critique.

They failed to seize this opportunity because the Dominion proposals could not be reconciled with the ancient and obsolete free-trade theories of Cobdenism".

Folk psychology retains characteristics of now obsolete theories or legends from the past.

Multiple superstitions and obsolete theories explaining the aurora have surfaced over the centuries.

The Tetrahedral hypothesis is an obsolete scientific theory attempting to explain the arrangement of the Earth's continents and oceans by referring to the geometry of a tetrahedron.

Both "wandering womb" and "hysteria" are obsolete medical theories that have been discredited today.

Maternal impression, an obsolete scientific theory that explained the existence of birth defects and congenital disorders.

The Out of Asia theory is an obsolete scientific theory which contended that modern humans first arose in Asia.

Though formulated in terms of caloric (see the obsolete caloric theory), rather than entropy, this was an early insight into the second law.

He defended the now obsolete theories that one could predict the personality of human beings based on cranial features and that some humans had a sixth sense.