Many visioneers champion free markets, less government, fewer regulations and profits for those who test the technological envelope.

CNN: A pioneer in space and on Earth

Perched atop a tower overlooking Arafat and getting a live broadcast signal out through a videophone presents technological challenges that would test anybody's patience.

CNN: Arafat: The climax of Hajj

Exchanges and execution venues in coordination with trading firms and clearing members have (or at least should have) an ethical obligation to create test environments and standards for system run-off tests, where all manner of market and technological scenarios bombard each system to verify its robustness.

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