Being A Physicist, Not A Philosopher, I

Physicists Often Quote From T. H. White's Epic Novel The Once And Future King, Where A Society Of Ants Declares, "everything Not Forbidden Is Compulsory." In Other Words, If There Isn't A Basic Principle Of Physics Forbidding Time Travel, Then Time Travel Is Necessarily A Physical Possibility. (the Reason For This Is The Uncertainty Principle. Unless Something Is Forbidden, Quantum Effects And Fluctuations Will Eventually Make It Possible If We Wait Long Enough. Thus, Unless There Is A Law Forbidding It, It Will Eventually Occur.)

I Think A Colony In Space Will Take Much Longer Than Sci Fiction Writers Think. It Costs $10,000 To Put A Pound Of Anything Into Near Earth Orbit. That Is Your Weight In Gold. It Costs About $100,000 A Pound To Put You On The Moon. And It Costs $1,000,000 A Pound To Put You On Mars.

We Believe That Black Holes Collapse To Rings Hitting Very Fast. If You Follow Through The Ring You Don't Die. The Mathematics Says You Fall Straight Through, Perhaps To Another Universe.

String Theory Is Based On The Simple Idea That All The Four Forces Of The Universe: Gravity, The Electromagnetic Force And The Two Nuclear Forces, Can Be Viewed, As Music.

When We're Born, We Want To Know Why The Stars Shine. We Want To Know Why The Sun Rises.