Fine Tuned Universe

Fine Tuning Parameters for the Universe

  1. strong nuclear force constant
    if larger: no hydrogen would form; atomic nuclei for most life-essential elements would be unstable; thus, no life chemistry
    if smaller: no elements heavier than hydrogen would form: again, no life chemistry
  2. weak nuclear force constant
    if larger: too much hydrogen would convert to helium in big bang; hence, stars would convert too much matter into heavy elements making life chemistry impossible
    if smaller: too little helium would be produced from big bang; hence, stars would convert too little matter into heavy elements making life chemistry impossible
  3. gravitational force constant
    if larger: stars would be too hot and would burn too rapidly and too unevenly for life chemistry
    if smaller
    : stars would be too cool to ignite nuclear fusion; thus, many of the elements needed for life chemistry would never form
  4. electromagnetic force constant
    if greater: chemical bonding would be disrupted; elements more massive than boron would be unstable to fission
    if lesser: chemical bonding would be insufficient for life chemistry
  5. ratio of electromagnetic force constant to gravitational force constant
    if larger: all stars would be at least 40% more massive than the sun; hence, stellar burning would be too brief and too uneven for life support
    if smaller
    : all stars would be at least 20% less massive than the sun, thus incapable of producing heavy elements
  6. ratio of electron to proton mass
    if larger: chemical bonding would be insufficient for life chemistry
    if smaller: same as above
  7. ratio of number of protons to number of electrons
    if larger: electromagnetism would dominate gravity, preventing galaxy, star, and planet formation
    if smaller: same as above
  8. expansion rate of the universe
    if larger: no galaxies would form
    if smaller
    : universe would collapse, even before stars formed
  9. entropy level of the universe
    if larger: stars would not form within proto-galaxies
    if smaller: no proto-galaxies would form
  10. mass density of the universe
    if larger: overabundance of deuterium from big bang would cause stars to burn rapidly, too rapidly for life to form
    if smaller: insufficient helium from big bang would result in a shortage of heavy elements
  11. velocity of light
    if faster: stars would be too luminous for life support if slower: stars would be insufficiently luminous for life support
  12. age of the universe
    if older: no solar-type stars in a stable burning phase would exist in the right (for life) part of the galaxy
    if younger: solar-type stars in a stable burning phase would not yet have formed
  13. initial uniformity of radiation
    if more uniform: stars, star clusters, and galaxies would not have formed
    if less uniform: universe by now would be mostly black holes and empty space
  14. average distance between galaxies
    if larger: star formation late enough in the history of the universe would be hampered by lack of material
    if smaller: gravitational tug-of-wars would destabilize the sun’s orbit
  15. density of galaxy cluster
    if denser: galaxy collisions and mergers would disrupt the sun’s orbit
    if less dense: star formation late enough in the history of the universe would be hampered by lack of material
  16. average distance between stars
    if larger: heavy element density would be too sparse for rocky planets to form
    if smaller
    : planetary orbits would be too unstable for life
  17. fine structure constant (describing the fine-structure splitting of spectral lines) if larger: all stars would be at least 30% less massive than the sun
    if larger than 0.06: matter would be unstable in large magnetic fields
    if smaller: all stars would be at least 80% more massive than the sun
  18. decay rate of protons
    if greater: life would be exterminated by the release of radiation
    if smaller: universe would contain insufficient matter for life
  19. 12C to 16O nuclear energy level ratio
    if larger: universe would contain insufficient oxygen for life
    if smaller: universe would contain insufficient carbon for life
  20. ground state energy level for 4He
    if larger: universe would contain insufficient carbon and oxygen for life
    if smaller
    : same as above
  21. decay rate of 8Be
    if slower: heavy element fusion would generate catastrophic explosions in all the stars
    if faster: no element heavier than beryllium would form; thus, no life chemistry
  22. ratio of neutron mass to proton mass
    if higher: neutron decay would yield too few neutrons for the formation of many life-essential elements
    if lower: neutron decay would produce so many neutrons as to collapse all stars into neutron stars or black holes
  23. initial excess of nucleons over anti-nucleons
    if greater: radiation would prohibit planet formation
    if lesser: matter would be insufficient for galaxy or star formation
  24. polarity of the water molecule
    if greater: heat of fusion and vaporization would be too high for life
    if smaller: heat of fusion and vaporization would be too low for life; liquid water would not work as a solvent for life chemistry; ice would not float, and a runaway freeze-up would result
  25. supernovae eruptions
    if too close, too frequent, or too late: radiation would exterminate life on the planet
    if too distant, too infrequent, or too soon: heavy elements would be too sparse for rocky planets to form
  26. white dwarf binaries
    if too few: insufficient fluorine would exist for life chemistry
    if too many: planetary orbits would be too unstable for life
    if formed too soon: insufficient fluorine production
    if formed too late: fluorine would arrive too late for life chemistry
  27. ratio of exotic matter mass to ordinary matter mass
    if larger: universe would collapse before solar-type stars could form
    if smaller: no galaxies would form
  28. number of effective dimensions in the early universe
    if larger: quantum mechanics, gravity, and relativity could not coexist; thus, life would be impossible
    if smaller: same result
  29. number of effective dimensions in the present universe
    if smaller: electron, planet, and star orbits would become unstable
    if larger
    : same result
  30. mass of the neutrino
    if smaller: galaxy clusters, galaxies, and stars would not form
    if larger: galaxy clusters and galaxies would be too dense
  31. big bang ripples
    if smaller: galaxies would not form; universe would expand too rapidly
    if larger: galaxies/galaxy clusters would be too dense for life; black holes would dominate; universe would collapse before life-site could form
  32. size of the relativistic dilation factor
    if smaller: certain life-essential chemical reactions will not function properly
    if larger
    : same result
  33. uncertainty magnitude in the Heisenberg uncertainty principle
    if smaller: oxygen transport to body cells would be too small and certain life-essential elements would be unstable
    if larger: oxygen transport to body cells would be too great and certain life-essential elements would be unstable
  34. cosmological constant
    if larger: universe would expand too quickly to form solar-type stars

Comments are closed.