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It [ai] Would Take Off On Its Own And Redesign Itself At An Ever Increasing Rate. Humans, Who Are Limited By Slow Biological Evolution, Couldn't Compete And Would Be Superseded.

-Stephen Hawking

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It [ai] Would Take

Stephen Hawking

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It [ai] Would Take Off On Its Own And Redesign Itself At An Ever Increasing Rate. Humans, Who Are Limited By Slow Biological Evolution, Couldn't Compete And Would Be Superseded.

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When I Hear Of Schrödinger's Cat, I Reach For My Pistol.

One, Remember To Look Up At The Stars And Not Down At Your Feet. Two, Never Give Up Work. Work Gives You Meaning And Purpose And Life Is Empty Without It. Three, If You Are Lucky Enough To Find Love, Remember It Is There And Don't Throw It Away.

It Is My View That The Simplest Explanation Is There Is No God. No One Created The Universe And No One Directs Our Fate. This Leads Me To A Profound Realization. There Is Probably No Heaven, And No Afterlife Either. We Have This One Life To Appreciate The Grand Design Of The Universe, And For That, I Am Extremely Grateful.

There Is A Very Real Danger That We Will Kill Everything On This Planet Now That We Have The Technological Power To Do So.

What Could Define God, [is Thinking Of God] As The Embodiment Of The Laws Of Nature. However, This Is Not What Most People Would Think Of That God. They Made A Human-like Being With Whom One Can Have A Personal Relationship. When You Look At The Vast Size Of The Universe And How Insignificant An Accidental Human Life Is In It, That Seems Most Impossible.

Teamwork...means Never Having To Take All The Blame Yourself.

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If You Are Lucky Enough To Find Love, Remember It Is There And Don't Throw It Away.

I Would Like Nuclear Fusion To Become A Practical Power Source. It Would Provide An Inexhaustible Supply Of Energy, Without Pollution Or Global Warming.

I'm Very Interested In Film Making. It's Telling A Story, Fiction Or Non-fiction. I Have Been Filmed Quite A Lot. Contrary To Popular Belief, Filming Isn't Glamorous. It Can Be Wearingly Repetitious, As The Same Shot Is Taken Over And Over Again.

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We Won't Know For A Few Years.

The Wise Never Marry, And When They Marry They Become Otherwise.

Do You Believe In First Love - Or Should I Pass By Again?

One Is Always A Long Way From Solving A Problem Until One Actually Has The Answer.

I Think The Brain Is Essentially A Computer And Consciousness Is Like A Computer Program. It Will Cease To Run When The Computer Is Turned Off. Theoretically, It Could Be Re-created On A Neural Network, But That Would Be Very Difficult, As It Would Require All One's Memories.

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Think Of Our Dna. In The Last Million Years, Our Dna Hasn't Changed At All. It's Really Much The Same As It Was In The Jungle, A Million, Two Millions Years Ago. But In The Last 200 Years, Our Destructive Capacities Have Increased Many, Many Millions Of Times Over. Why Don't We See Intelligent Signals From Outer Space? Because In All Likelihood, Once The Civilization Reaches The Point Our Civilization Has Reached, It Destroys Itself.

A Million Million Million Million (1 With Twenty-four Zeros After It) Miles, The Size Of The Observable Universe.

The Radiation Left Over From The Big Bang Is The Same As That In Your Microwave Oven But Very Much Less Powerful. It Would Heat Your Pizza Only To Minus 271.3*c - Not Much Good For Defrosting The Pizza, Let Alone Cooking It.

In The Last 200 Years The Population Of Our Planet Has Grown Exponentially, At A Rate Of 1.9% Per Year. If It Continued At This Rate, With The Population Doubling Every 40 Years, By 2600 We Would All Be Standing Literally Shoulder To Shoulder.

The Real Challenge Is To Work Out What Aliens Might Actually Be Like.

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Even If There Is Only One Possible Unified Theory, It Is Just A Set Of Rules And Equations. What Is It That Breathes Fire Into The Equations And Makes A Universe For Them To Describe?

If There Really Is A Complete Unified Theory That Governs Everything, It Presumably Also Determines Your Actions. But It Does So In A Way That Is Impossible To Calculate For An Organism That Is As Complicated As A Human Being. The Reason We Say That Humans Have Free Will Is Because We Can't Predict What They Will Do.

Doing A Job Right The First Time Gets The Job Done. Doing The Job Wrong Fourteen Times Gives You Job Security.

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There Is No Heaven Or Afterlife For Broken Down Computers; That Is A Fairy Story For People Afraid Of The Dark.

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Equations Are Just The Boring Part Of Mathematics. I Attempt To See Things In Terms Of Geometry.

If The Rate Of Expansion One Second After The Big Bang Had Been Smaller By Even One Part In A Hundred Thousand Million Million, It Would Have Recollapsed Before It Reached Its Present Size. On The Other Hand, If It Had Been Greater By A Part In A Million, The Universe Would Have Expanded Too Rapidly For Stars And Planets To Form.

My Goal Is Simple. It Is A Complete Understanding Of The Universe, Why It Is As It Is And Why It Exists At All.

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If I Have Questions About The Universe On My Mind When I Go To Bed, I Can't Turn Off. I Dream Equations All Night.

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Plagiarism Saves Time.

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Why Does The Universe Go To All The Bother Of Existing?

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Hang In There, Retirement Is Only Thirty Years Away!

I Do Not Believe In A Personal God.

Never Put Off The Work Till Tomorrow What You Can Put Off Today.

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We Find Ourselves In A Bewildering World. We Want To Make Sense Of What We See Around Us And To Ask: What Is The Nature Of The Universe? What Is Our Place In It And Where Did It And We Come From? Why Is It The Way It Is?

Look Up At The Stars, Not Down At Your Feet.

[on President Bush's Plan To Get To Mars In 10 Years] Stupid. Robots Would Do A Better Job And Be Much Cheaper Because You Don't Have To Bring Them Back.

We Are Only The Temporary Custodians Of The Particles Which We Are Made Of. They Will Go On To Lead A Future Existence In The Enormous Universe That Made Them

As We Shall See, The Concept Of Time Has No Meaning Before The Beginning Of The Universe. This Was First Pointed Out By St. Augustine. When Asked: What Did God Do Before He Created The Universe? Augustine Didn't Reply: He Was Preparing Hell For People Who Asked Such Questions. Instead, He Said That Time Was A Property Of The Universe That God Created, And That Time Did Not Exist Before The Beginning Of The Universe.

A Snooze Button Is A Poor Substitute For No Alarm Clock At All.

I Think [contacting An Alien Civilization] Would Be A Disaster. The Extraterrestrials Would Probably Be Far In Advance Of Us. The History Of Advanced Races Meeting More Primitive People On This Planet Is Not Very Happy, And They Were The Same Species. I Think We Should Keep Our Heads Low.

It's The Gravity That Shapes The Large Scale Structure Of The Universe, Even Though It Is The Weakest Of Four Categories Of Forces

Someone Told Me That Each Equation I Included In The Book Would Halve The Sales.

Simplicity Is A Matter Of Taste

It Matters If You Don't Just Give Up.

I Believe Everyone Should Have A Broad Picture Of How The Universe Operates And Our Place In It. It Is A Basic Human Desire. And It Also Puts Our Worries In Perspective.

There Are Plenty Of Dead Scientists I Admire, But I Can't Think Of Any Living Ones. This Is Probably Because It Is Only In Retrospect That One Can See Who Made The Important Contributions.

So Einstein Was Wrong When He Said, "god Does Not Play Dice." Consideration Of Black Holes Suggests, Not Only That God Does Play Dice, But That He Sometimes Confuses Us By Throwing Them Where They Can't Be Seen.

What You Have Told Us Is Rubbish. The World Is Really A Flat Plate Supported On The Back Of A Giant Tortoise.

We Are All Now Connected By The Internet, Like Neurons In A Giant Brain.

We Got Through All Of Genesis And Part Of Exodus Before I Left. One Of The Main Things I Learned From This Exercise Was Not To Begin A Sentence With "and." When I Pointed Out That Most Sentences In The Bible Began With "and," I Was Told That English Had Changed Since The Time Of King James. In That Case, I Argued, Why Make Us Read The Bible? But It Was In Vain. Robert Graves At That Time Was Very Keen On The Symbolism And Mysticism In The Bible.

I Don't Want To Write An Autobiography Because I Would Become Public Property With No Privacy Left.

Many People Do Not Like The Idea That Time Has A Beginning, Probably Because It Smacks Of Divine Intervention.

The Lesson Of The Book Is That The Universe Is Governed By The Laws Of Science.

The Thing About Smart People Is That They Seem Like Crazy People To Dumb People.

It Is Said That There's No Such Thing As A Free Lunch. But The Universe Is The Ultimate Free Lunch.

I Like Physics, But I Love Cartoons.

If The Total Energy Of The Universe Must Always Remain Zero, And It Costs Energy To Create A Body, How Can A Whole Universe Be Created From Nothing?

In Fact, If One Considers The Possible Constants And Laws That Could Have Emerged, The Odds Against A Universe That Produced Life Like Ours Are Immense.

It Surprises Me How Disinterested We Are Today About Things Like Physics, Space, The Universe And Philosophy Of Our Existence, Our Purpose, Our Final Destination. Its A Crazy World Out There. Be Curious.

God Not Only Plays Dice, He Throws Them In The Corner Where You Can't See Them.

A Theory Is A Good Theory If It Satisfies Two Requirements: It Must Accurately Describe A Large Class Of Observations On The Basis Of A Model That Contains Only A Few Arbitrary Elements, And It Must Make Definite Predictions About The Results Of Future Observations.

Every Man Should Marry. After All, Happiness Is Not The Only Thing In Life.

So Remember To Look Up At The Stars And Not Down At Your Feet. Try To Make Sense Of What You See And Hold On To That Childlike Wonder About What Makes The Universe Exist.

I Think The Human Race Doesn't Have A Future If We Don't Go Into Space. We Need To Expand Our Horizons Beyond Planet Earth If We Are To Have A Long-term Future. We Cannot Remain Looking Inward At Ourselves On A Small And Increasingly Polluted And Overcrowded Planet. We Need To Look Outward To The Wider Universe.

I Am Discounting The Reports Of Ufos. Why Would They Appear Only To Cranks And Weirdos?

What I Have Learned From Life Is To Make The Most Of What You Have Got.

My First Popular Book, 'a Brief History Of Time,' Aroused A Great Deal Of Interest, But Many Found It Difficult To Understand.

Science Can Lift People Out Of Poverty And Cure Disease. That, In Turn, Will Reduce Civil Unrest.

Most Sets Of Values Would Give Rise To Universes That, Although They Might Be Very Beautiful, Would Contain No One Able To Wonder At That Beauty.

I Have So Much That I Want To Do. I Hate Wasting Time.

Now, Radical Forward Thinking Is Offering Hope For The Future: Replacement Body Parts To Order. A Team Of Scientists In California Believe That If You Can Design Them On A Computer, You Should Be Able To Print Them Out.

The Human Race Is Just A Chemical Scum On A Moderate-sized Planet, Orbiting Around A Very Average Star In The Outer Suburb Of One Among A Hundred Billion Galaxies. We Are So Insignificant That I Can't Believe The Whole Universe Exists For Our Benefit. That Would Be Like Saying That You Would Disappear If I Closed My Eyes.

There Should Be A Better Way To Start A Day Than Waking Up Every Morning.

If What We Regard As Real Depends On Our Theory, How Can We Make Reality The Basis Of Our Philosophy? But We Cannot Distinguish What Is Real About The Universe Without A Theory. It Makes No Sense To Ask If It Corresponds To Reality, Because We Do Not Know What Reality Is Independent Of A Theory.

Using E-mail, I Can Communicate With Scientists All Over The World.

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

Computer Viruses Are Alive.

We Should Seek The Greatest Value Of Our Action.

If You Lined Up All The Cars In The World End To End, Someone Would Try To Pass Them.

Science Makes God Unnecessary.

Whether You Want To Uncover The Secrets Of The Universe, Or You Just Want To Pursue A Career In The 21st Century, Basic Computer Programming Is An Essential Skill To Learn

Although Quantum Mechanics Has Been Around For Nearly 70 Years, It Is Still Not Generally Understood Or Appreciated, Even By Those That Use It To Do Calculations.

I Wouldnt Be Here Today If It Were Not For The Nhs, I Have Received A Large Amount Of High-quality Treatment Without Which I Would Not Have Survived.

There Is No Prescribed Route To Follow To Arrive At A New Idea. You Have To Make The Intuitive Leap.

Intelligence Is The Ability To Adapt To Change.

Being Confined To A Wheelchair Doesn't Bother Me As My Mind Is Free To Roam The Universe, But It Felt Wonderful To Be Weightless.

There Is No Prescribed Route To Follow To Arrive At A New Idea. You Have To Make The Intuitive Leap. But The Difference Is That Once You've Made The Intuitive Leap You Have To Justify It By Filling In The Intermediate Steps. N My Case, It Often Happens That I Have An Idea, But Then I Try To Fill In The Intermediate Steps And Find That They Don't Work, So I Have To Give It Up.

I Think My Dad [ Stephen Hawking] Would Have Been Pleased If I Had Turned Out A Scientist Because He Truly Believes That Is The Most Interesting Career Open To Anyone. But He Also Believes That You Have To Follow Your Own Path In Life And So He Certainly Wasn't Going To Push Me Toward Theoretical Physics When It Didn't Look Like I Was Going In That Direction Naturally.

It Is Tribute To How Far We Have Come In Theoretical Physics That It Now Takes Enormous Machines And A Great Deal Of Money To Perform Experiments Whose Results We Can Not Predict.

Theoretical Physics

Observations Indicate That The Universe Is Expanding At An Ever-increasing Rate. It Will Expand Forever, Getting Emptier And Darker. Although The Universe Doesn’t Have An End, It Had A Beginning In The Big Bang. One Might Ask What Is Before That But The Answer Is That There Is Nowhere Before The Big Bang Just As There Is Nowhere South Of The South Pole.

I May Contradict Myself, But At Least I Don't Contradict Myself.

I'd Say I Don't Believe In God, But I'm Afraid He Might Hear Me.

If The Government Is Covering Up Knowledge Of Aliens, They Are Doing A Better Job Of It Than They Do At Anything Else.

I Don't Think The Human Race Will Survive The Next Thousand Years, Unless We Spread Into Space.

One Might Think This Means That Imaginary Numbers Are Just A Mathematical Game Having Nothing To Do With The Real World. From The Viewpoint Of Positivist Philosophy, However, One Cannot Determine What Is Real. All One Can Do Is Find Which Mathematical Models Describe The Universe We Live In. It Turns Out That A Mathematical Model Involving Imaginary Time Predicts Not Only Effects We Have Already Observed But Also Effects We Have Not Been Able To Measure Yet Nevertheless Believe In For Other Reasons. So What Is Real And What Is Imaginary? Is The Distinction Just In Our Minds?

A Model Is A Good Model If First It Interprets A Wide Range Of Observations In Terms Of A Simple And Elegant Model, And Second If The Model Makes Definite Predictions That Can Be Tested, And Possibly Falsified, By Observation.

Some Individuals Are Better Able Than Others To Draw The Right Conclusions About The World About Them And Act Accordingly. These Individuals Will Be More Likely To Survive And Reproduce So Their Pattern Of Behaviour And Thought Will Become Dominant

One Can't Predict The Weather More Than A Few Days In Advance.

I Don't Know What My Iq Is. People Who Gloat About Their Iq's Are Losers

The Past, Like The Future, Is Indefinite And Exists Only As A Spectrum Of Possibilities.

Future Possibilities

We've Created Life In Our Own Image.

Scientists Tend To Risk Theories They Admire

I Don't Think The Human Race Will Survive The Next Thousand Years, Unless We Spread Into Space. There Are Too Many Accidents That Can Befall Life On A Single Planet. But I'm An Optimist. We Will Reach Out To The Stars.

It Is Not Clear That Intelligence Has Any Long-term Survival Value.

What Was God Doing Before The Divine Creation?

Why Are We Here? Where Do We Come From? Traditionally, These Are Questions For Philosophy, But Philosophy Is Dead.

All That My Work Has Shown Is That You Don't Have To Say That The Way The Universe Began Was The Personal Whim Of God.

The Downside Of My Celebrity Is That I Cannot Go Anywhere In The World Without Being Recognized. It Is Not Enough For Me To Wear Dark Sunglasses And A Wig. The Wheelchair Gives Me Away.

Theology Is Unnecessary.

Then We Shall... Be Able To Take Part In The Discussion Of The Question Of Why It Is That We And The Universe Exist. If We Find The Answer To That, It Would Be The Ultimate Triumph Of Human Reason - For Then We Would Know The Mind Of God.

If There Is A God

I Think The Human Race Has No Future If It Doesn't Go Into Space.

If We Can Avoid Disaster For The Next Two Centuries, Our Species Should Be Safe As We Spread Into Space. If We Are The Only Intellegent Beings In The Galaxy We Should Make Sure We Survive And Continue. . . . Our Only Chance Of Long-term Survival Is Not To Remain Inward Looking On Planet Earth But To Spread Out Into Space. We Have Made Remarkable Progress In The Last Hundred Years. But If We Want To Continue Beyond The Next Hundred Years, Our Future Is In Space.

We Are Very, Very Small, But We Are Profoundly Capable Of Very, Very Big Things.

[question: Do You Feel That Scientists Correct Themselves As Often As They Should?] More Often Than Politicians, But Not As Often As They Should.

No One Can Resist The Idea Of A Crippled Genius.

Half The Battle Is Just Showing Up.

[in The Universe It May Be That] Primitive Life Is Very Common And Intelligent Life Is Fairly Rare. Some Would Say It Has Yet To Occur On Earth.

Chaos, When Left Alone, Tends To Multiply.

Science Is Beautiful When It Makes Simple Explanations Of Phenomena Or Connections Between Different Observations.

Science Fiction Can Be Exciting And Very Gripping, But It Doesn't Tell Us Anything About The Universe In Which We Live.

However Difficult Life May Seem, There Is Always Something You Can Do And Succeed At.

Inspiring Movie

To My Mathematical Brain, The Numbers Alone Make Thinking About Aliens Perfectly Rational.

If Everything In The Universe Depends Upon Everything Else In A Fundamental Way, It Might Be Impossible To Get Close To A Full Solution By Investigating Parts Of The Problem In Isolation.

What I Meant By 'we Would Know The Mind Of God' Is, We Would Know Everything That God Would Know, If There Were A God. Which There Isn't. I'm An Atheist.

Someone Told Me That Each Equation I Included In My Book Would Halve The Sales. I Did Put In One Equation, Einstein's Famous Equation, E = Mc Squared. I Hope That This Will Not Scare Off Half Of My Potential Readers.

Its A Crazy World Out There. Be Curious.

Children In Backseats Cause Accidents. Accidents In Backseats Cause Children.

The Development Of Full Artificial Intelligence Could Spell The End Of The Human Race.

Don't Be Disabled In Spirit As Well As Physically.

Science Could Predict That The Universe Must Have Had A Beginning.

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