Policy makers base overarching decisions on historical aggregates and pure conjecture programmed into computer models.

FORBES: Economists Aren't As Clever As They Think They Are

The fact is, most of what you read or hear is pure conjecture, speculation, fantasy or opinion.

FORBES: Unbridled Optimism

Whether Lance Armstrong will be prosecuted criminally is, at this point, a matter of pure conjecture.

FORBES: Lance Armstrong -- Rorschach Test

The two allegations are inextricably intermingled, and if you conclude, as you should, that there's no evidence to support the underlying allegation -- that the underlying offense is based on nothing but pure conjecture, you will conclude that the perjury charge is nothing more than an attempt to get two bites at the same apple.

CNN