Life Would Be Tragic If It Weren't

"sooner Or Later Disasters Such As An Asteroid Collision Or A Nuclear War Could Wipe Us All Out, But Once We Spread Out Into Space And Establish Independent Colonies, Our Future Should Be Safe."

If There Really Is A Complete Unified Theory That Governs Everything, It Presumably Also Determines Your Actions. But It Does So In A Way That Is Impossible To Calculate For An Organism That Is As Complicated As A Human Being. The Reason We Say That Humans Have Free Will Is Because We Can't Predict What They Will Do.

A Model Is A Good Model If First It Interprets A Wide Range Of Observations In Terms Of A Simple And Elegant Model, And Second If The Model Makes Definite Predictions That Can Be Tested, And Possibly Falsified, By Observation.

So Great A Contribution To Physics Was Two New Sciences That Scholars Have Long Maintained That The Book Anticipated Isaac Newton's Laws Of Motion.

The Boundary Condition Of The Universe Is That It Has No Boundary.