> How do you do this? I draw them the Cone of Uncertainty (http://www.construx.com/Thought_Leadership/Books/The_Cone_of_Uncertainty/ http://www.construx.com/Th

> How do you do this? I draw them the Cone of Uncertainty (http://www.construx.com/Thought_Leadership/Books/The_Cone_of_Uncertainty/ http://www.construx.com/Thought_Leadership/Books/The_Cone_of...).