At M.I.T., Summers focussed on working through real-world problems using rigorous methods, rather than following the drift of many of his peers, who, he believed, were building elegant and useless theories just for the sake of it.
They also showed the bioluminescence only occurred at night – ruling out the "useless by-product" theory.
In reality the indicated frequency ratio may be irrational in which case the response is shown to be quasi-periodic, rendering the Floquet theory useless.
Bottom line: good in theory, useless in practice.
When it's lost, if the security measures work, it should in theory be useless to anyone picking it up.
But is man's understanding of the eternal consciousness so vague that Green's theory is useless as a practical guide to individuals?
Dunham plays Aura, just graduated from an Ohio college with an apparently useless degree in film theory.
The distinction between this approach and the first two is that though many historians of religions agree with functionalists that the origin-evolutionary theories are useless as hypotheses, they also reject functionalism as an adequate explanation of ritual.
By my opinion, however, equations are very useful for describing or even refuting particular models (see K.R. Popper), however, they are much less useful for describing and more or less useless for refuting complex theories (see T.S. Kuhn).
Much of their economic theory is rather useless.
In his Nobel speech, he noted that the Soviet Union took the public position that any European war would automatically become a nuclear conflict, yet at the same time, Moscow poured immense resources into building up conventional forces that in theory would be useless in a nuclear war.
