This is because there is no way of telling exactly when capitalism will end, or if it will simply keep evolving instead.

Litvyak's story keeps evolving as new writers pick up the torch, but it is not easy to reconstruct her life and death.

The change would mean state aid levels would have to keep evolving, incorporating the cost of teaching students to use new technologies.

Like myths, they keep evolving with the telling.

The project keeps evolving until it is hard to tell where one picked up and the other left off.

Their music keeps evolving and kicking into higher gear, choosing momentum over hypnotism.

But then, a real garden keeps evolving forever.

"My Roy is going to keep evolving as I do it," he said.

Just as the scene of the crime has changed, the meaning of the case keeps evolving with the politics of the times.

Clauses in contracts limiting the number of insertions kept evolving through the nineteenth century.