...quantum Mechanics—the Physics Of Our World—requires That

If The Theory Turns Out To Be Right, That Will Be Tremendously Thick And Tasty Icing On The Cake.

The Melded Nature Of Space And Time Is Intimately Woven With Properties Of Light Speed. The Inviolable Nature Of The Speed Of Light Is Actually, In Einstein's Hands, Talking About The Inviolable Nature Of Cause And Effect.

The Pinpoints Of Starlight We See With The Naked Eye Are Photons That Have Been Streaming Toward Us For A Few Years Or A Few Thousand.

We Do Not Know Whether There Are Extra Dimensions Or Multiverse. Let's Go Forward With The Possible Ideas That Come Out Of The Mathematics. It's Hard For Us To Imagine A Universe That Would Have No Time At All.

Einstein Comes Along And Says, Space And Time Can Warp And Curve, That's What Gravity Is. Now String Theory Comes Along And Says, Yes, Gravity, Quantum Mechanics, Electromagnetism - All Together In One Package, But Only If The Universe Has More Dimensions Than The Ones That We See.