A scientific theory need not conform to "common sense" in the usual usage of that term.

The simplest available theory need not be most accurate.

This was the flesh that her skeletal theory needed.

In consequence, theories of age and aging will need to be reconceptualized.

There are experimental findings to suggest that Wagner's theory needs to be modified in this respect.

At the very least, any moral theory needs to define the standpoint from which the goodness of the consequences are to be determined.

But the theory needs more than these because the elements which it recognizes are more in number.

Thus needs theories are likely to share resources equally between young and old.

This theory needs inequality in order to to operate.

Yes, but this theory of mine needs some support.