All You Are Is A Bag Of

String Theory Envisions A Multiverse In Which Our Universe Is One Slice Of Bread In A Big Cosmic Loaf. The Other Slices Would Be Displaced From Ours In Some Extra Dimension Of Space.

We Might Be The Holographic Image Of A Two-dimensional Structure.

Evidence In Support Of General Relativity Came Quickly. Astronomers Had Long Known That Mercury’s Orbital Motion Around The Sun Deviated Slightly From What Newton’s Mathematics Predicted. In 1915, Einstein Used His New Equations To Recalculate Mercury’s Trajectory And Was Able To Explain The Discrepancy, A Realization He Later Described To His Colleague Adrian Fokker As So Thrilling That For Some Hours It Gave Him Heart Palpitations.

A Watch Worn By A Particle Of Light Would Not Tick At All. Light Realizes The Dreams Of Ponce De Leon And The Cosmetics Industry: It Doesn't Age.

The Bottom Line Is That Time Travel Is Allowed By The Laws Of Physics.