The World Is Vast, Beautiful,

The Social Sciences, I Thought, Needed The Same Kind Of Rigor And The Same Mathematical Underpinnings That Had Made The 'hard' Sciences So Brilliantly Successful.

Solving A Problem Simply Means Representing It So As To Make The Solution Transparent.

Human Beings Know A Lot Of Things, Some Of Which Are True, And Apply Them. When We Like The Results, We Call It Wisdom.

What Information Consumes Is Rather Obvious: It Consumes The Attention Of Its Recipients. Hence A Wealth Of Information Creates A Poverty Of Attention, And A Need To Allocate That Attention Efficiently Among The Overabundance Of Information Sources That Might Consume It.

The Aim ... Is To Provide A Clear And Rigorous Basis For Determining When A Causal Ordering Can Be Said To Hold Between Two Variables Or Groups Of Variables In A Model . . . . The Concepts Refer To A Model-a System Of Equations-and Not To The 'real' World The Model Purports To Describe.