Theory of Everything

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Theory of Everything

• Hawking film 6

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Atlantic City

• One side is glitzy
• One side is common

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Physics Laws

• One side is Newtonian
• One side is relativity

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• Trace universe backward in time
• Pushed toward the very small
• Quantum mechanics very small

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TOE

• Large scale Gravity rules
• Atomic forces SNF
• Theory of everything must be unified
• Should be a theory that embraces all factors

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• Universe is a single point in the beginning
• A moment later, it is huge
• Intellect, intuition, experiment
• Observation makes inspiration
• SLAK, Palo Alto, CA

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• Accuracy to 15 decimal places or else universe
  flies apart before galaxies formed
• Uncanny balance between expansion and collapse
• Alan Guth -

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• Andrei Linde, Russian
• Inflation theory (like Guth)
• Model energy trapped in vacuum, energy could
  collapse like bubbles
• Balance - gtgtgtgtgt
• Growing evenly in all directions

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• Guth 70s inflation
• Happens like water boils one here, one there
• Morrass not like what our universe looks like
• Published with flaws
• Ussr cannot publish until all flaws worked out

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• Linde what if just one of the bubbles inflated
  and our universe emerged?
• Difficulty with Guth collision of bubbles
• One bubble will be larger than the universe
• Lindes theory demolished
• Linde gave important idea inflation
• Does not explain the start of the universe

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Run theory backwards in time

• Gravity field became infinitely high
• Logic replaced by chance
• Matter ruled by probability
• Equations blow up when it hits a singularity
• Quantum mechanics strangest thing humans
  thought up

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Eisenberg uncertainty principle

• Never know with precision where small is
• Add up to certainties
• Only makes sense as a universe as a whole only at
  its beginning

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Problem of the singularity

• Quantum mechanics gravity
• Solve simplified model of universe
• Imaginary time replaces singularity
• No boundary, no beginning, no end, just curves
  back on itself, no singularities
• Quantum mech is solution to singularity

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No Boundaries Proposal

• Need gen rel and quantum mech to be unified as
  quantum gravity

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One Simple Law

• Smolin, Lee biology
• Universe choose its parameters
• Bio world - so many species
• So beautiful in so many ways
• Basic idea some population random changes on
  characteristics
• Darwin nat. selection

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• Universe invents life?
• How so much structure?
• Disc of spiral galaxy
• Patterns on sea shells
• Assembled from itself, create itself
• Could be wrong
• Not proved wrong yet

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What preceded creation?

• 1985 perestroika reconstruction forbid
  sending out papers
• Became ill
• 24h to find something worth saying at conference
• Theory of inflation that produced multitude of
  universes self-producing universe
• Each product of own big bang
• Seed others so process goes on and on

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• Single explanation of a single universe
• Super string theory
• Universe a dot
• Like a bowl of vibrating noodles that exploded
  into the diversity
• Kaku, M
• Bubbles, string

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Not Compatible

• Big Einstein (smooth)
• Small quantum (grainy)

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String

• Minute strands of space-time
• Atom size of soalr system
• String then size of atom
• Universm size of string
• String moves vibrates
• Body is a synphony
• String forces curl up like gravity warp

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• Matter like atoms
• Forces that attract matter
• Dichotomy
• One string could be quark
• One a photon

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• Clouds no symmetry
• Backwards to big bang see symmetry perfect
• Superstring theory gives perfect symmetry as move
  backward
• Humans cannot understand equations of theory of
  everything at this time

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• String is no theory since it puts forth no
  predictions to be proved
• Math too difficult
• Theory smarter than we are
• Ed Witten smartest man on earth

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Witten

• Dont have overview of all details
• Math constructions want strings to describe
  world

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• 5 theories describe universe if one theory
  describes our univ.
• Who lives in others
• Duality m relation between 2 theories that is
  not obvious
• One more useful in describing somethings

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• 5 blind scientists discovered trunk, ear foot
• Thought 5 animals
• Really one elephant
• Witten heir apparent to Einstein

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• Sometimes you know a little bit more
• Witten get as far as we can is the best we can
  do sponsor for life
• Hawking 20 years to find all
• Quantum gravity

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• Neil turok, cambridge exploring past make map
  of all maps satellite
• Planck explorer map whole sky at high
  resolution
• Esa
• Estec project
• Map holds vast amt of info

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• Map of very early times
• Map of temp variations on the sky
• Secrets, signature of creation on map
• Time to know ultimate truth
• Absence of data so theories abound
• Provide framework within which one can make
  predictions

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• Answer questions or ask more?
• Theories beat to death predictions
• Within 10 years have data that will tell how
  structure formed in the universe
• Get busy only have 10 years
• Get how but not why know mind of God

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End