Suddenly the theory of the simpler computer begins to yield to harsh reality.

But once they started looking at the data, the theory began to seem plausible.

In the years after the war, however, another theory concerning the strange behavior of those soldiers began to emerge.

As I looked, a theory began to evolve in my mind.

Towards the end of the century however a contrary theory began to gain ground.

When an academic approach is used the theory begins to crumble.

Slowly the complete theory began to evolve in his mind; he was a long way from the final proof, but the road was clear.

A theory began to be formulated about the interaction between the Earth's magnetic field and the solar wind.

When yet another theory of the crime began developing here in recent weeks, interest picked up as if the trial had ended yesterday.

But that theory began to be questioned after Cigar lost 10 of 11 starts on the turf.