Any Physical Theory Is Always Provisional, In

There Could Be Whole Antiworlds And Antipeople Made Out Of Antiparticles. However, If You Ever Meet Your Antiself, Don't Shake Hands! You Would Both Vanish In A Great Flash Of Light.

When I Was Young, Stephen Hawking Wasn't The World's Most Famous Physicist. The Fame Didn't Arrive Until The Publication Of "a Brief History Of Time," By Which Time I Was In My Late Teens. When I Was A Child, He Was Well Known Among Physicists, But They Are A Fairly Select, Serious Bunch, Not Much Given To Celebrity Idolizing.

Working With My Father [stephen Hawking ] Is A Great Thrill - He Has The Amazing Ability To Hold Enormous Amounts Of Information In His Head.

If A Superior Alien Civilization Sent Us A Message Saying, 'we'll Arrive In A Few Decades', Would We Just Reply, 'ok, Call Us When You Get Here - We'll Leave The Lights On'? Probably Not - But This Is More Or Less What Is Happening With Ai.

Although I Cannot Move, And I Have To Speak Through A Computer, In My Mind, I Am Free.