In every case, humanity and common sense made the insoluble problem just get up and go away.

NEWYORKER: The Caging of America

On the practical side, the insoluble problem is slippage over time.

FORBES: U.S. Government: Too Big To Succeed?

The forecasting problem is ultimately insoluble.

ECONOMIST: Shared values

Their services are needed because the problem of planetary global warming is so large and insoluble that it defies our ability to understand it.

FORBES: How Super-Achieving 'Knowledge Journalists' Shape Our Thinking

Today David Obey said he wasn't sure how he was going to deal with the supplemental request because he was afraid the administration would be -- in his words -- devoured by an insoluble problem in Pakistan and Afghanistan.

WHITEHOUSE: White House Press Briefing