Time Travel Would Get You Nowhere

You Could Go Back A Thousand Times And Lose A Thousand Times

There's An Idea From Russian Physicist Igor Novikov

Called The Self Consistency Principle

The Short Version

The Universe Refuses To Contradict Itself

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OKAY BACK FROM THE TIME LOOP ⏳

Say You Go Back To Keep Your Parents From Ever Meeting

So You're Never Born

Simple Enough

You Delete Yourself

Except Under This Idea It Never Lands

Because Something Always Interferes

The Train Leaves Early

You Have The Wrong Date

They Cross Paths Somewhere Else Entirely

Or Your Interference Is The Reason They Meet At All

If Time Travel Worked

You Would Never Be Rewriting The Past

You Would Already Be In It

Now Look Closer

Novikov Put This Forward In 1980s Russia

While Working Through Einstein's General Relativity

Einstein's Equations Do Permit Time Travel

Through Structures Called Closed Timelike Curves

Loops In Spacetime Where The Future Folds Back

And Touches The Past

The Math Checks Out

The Geometry Is Allowed

The Universe Technically Leaves The Door Open

But Novikov Noticed Something Odd

When Physicists Modeled Objects Moving Through These Loops

Every Paradox Producing Scenario Came Back

With A Probability Of Exactly Zero

Not Rare

Not Improbable

Zero

Now Follow This Carefully

Some Call It The Conservation Of History

A Rule With The Same Shape As The Conservation Of Energy

Energy Shifts Form But It Never Disappears

History Behaves The Same Way

You Can Move Through It

You Can Watch It

You Can Even Take Part In It

You Cannot Break It

Say You Go Back To Prevent A War

The Rifle Jams

The Letter Is Lost

The General Reverses Himself

For Reasons That Have Nothing To Do With You

The War Starts On Schedule

Or Worse

Your Interference Is What Started It

This Isn't Fiction

Physicists Have Tested The Principle

With Photons Routed Through Quantum Circuits And The Math Held

Every Paradox-producing Outcome Corrected Itself

Before It Could Happen

The Implications Are Heavy

If Novikov Is Right

Free Will Inside A Time Loop Is Theater

You Believe You're Choosing

You're Reciting Lines That Were Written Before You Got There

Every Decision You'd Make In The Past Has Already Been Made

Every Consequence You'd Cause Has Already Happened

Nothing You Do Changes The Outcome

Because You Were Always Part Of The Outcome

You Were Never Going Back To Repair The Past

The Past Was Waiting On You