ID part one
[I've not attempted to defend Christian ID. However even there, all exertions are not scientifically lacking. Consider this effort by a blatantly creationist/Biblical site to make a case based on statistical probabilities, complete with references -- indicated by (#) -- to scientific journals and books. I've shortened references to make this fit into two posts.]
http://www.godandscience.org/apologetics/designss.html#09]
Uniqueness of the Galaxy-Sun-Earth-Moon System for Life Support
The table below lists the parameters required for a planet to be able to sustain life. Individually, the probabilities of occurrence of each parameter are not particularly impressive. The fact that all of these parameters are found on the Earth is extremely impressive, indicating an extreme deviation from random chance. The probability values below are ones obtained from that observed in the universe as a whole.
1. galaxy size (9), probability (p) = 0.1
if too large: infusion of gas and stars would disturb sun's orbit and ignite deadly galactic eruptions
if too small: infusion of gas would be insufficient to sustain star formation long enough for life to form
2. galaxy type (7) (p = 0.1)
if too elliptical: star formation would cease before sufficient heavy elements formed for life chemistry
if too irregular: radiation exposure would be too severe (at times) and life-essential heavy elements would not form
3. galaxy location (9) (p = 0.1)
if too close to dense galaxy cluster: galaxy would be gravitationally unstable, hence unsuitable for life
if too close to large galaxy(ies): same result
4. supernovae eruptions (8) (p = 0.01)
if too close: radiation would exterminate life
if too far: too little "ash" would be available for rocky planets to form
if too infrequent: same result
if too frequent: radiation would exterminate life
if too soon: too little "ash" would be available for rocky planets to form
if too late: radiation would exterminate life
5. white dwarf binaries (8) (p = 0.01)
if too few: insufficient fluorine would exist for life chemistry
if too many: orbits of life-supportable planets would be disrupted; life would be exterminated
if too soon: insufficient fluorine would exist for life chemistry
if too late: fluorine would arrive too late for life chemistry
6. proximity of solar nebula to a supernova eruption (9)
if farther: insufficient heavy elements would be attracted for life chemistry
if closer: nebula would be blown apart
7. timing of solar nebula formation relative to supernova eruption (9)
if earlier: nebula would be blown apart
if later: nebula would not attract enough heavy elements for life chemistry
8. parent star distance from center of galaxy (9) (p = 0.2)
if greater: insufficient heavy elements would be available for rocky planet formation
if lesser: radiation would be too intense for life; stellar density would disturb planetary orbits, making life impossible
9. parent star distance from closest spiral arm (9) (p = 0.1)
if too small: radiation from other stars would be too intense and the stellar density would disturb orbits of life-supportable planets
if too great: quantity of heavy elements would be insufficient for formation of life-supportable planets
10. z-axis range of star's orbit (9) (p = 0.1)
if too wide: exposure to harmful radiation from galactic core would be too great
11. number of stars in the planetary system (10) (p = 0.2)
if more than one: tidal interactions would make the orbits of life-supportable planets too unstable for life
if fewer than one: no heat source would be available for life chemistry
12. parent star birth date (9) (p = 0.2)
if more recent: star burning would still be unstable; stellar system would contain too many heavy elements for life chemistry
if less recent: stellar system would contain insufficient heavy elements for life chemistry
13. parent star age (9) (p = 0.4)
if older: star's luminosity would be too erratic for life support
if younger: same result
14. parent star mass (10) (p = 0.001)
if greater: star's luminosity would be too erratic and star would burn up too quickly to support life
if lesser: life support zone would be too narrow; rotation period of life-supportable planet would be too long; UV radiation would be insufficient for photosynthesis
15. parent star metallicity (9) (p = 0.05)
if too little: insufficient heavy elements for life chemistry would exist
if too great: radioactivity would be too intense for life; heavy element concentrations would be poisonous to life
16. parent star color (9) (p = 0.4)
if redder: photosynthetic response would be insufficient to sustain life
if bluer: same result
17. H3+ production (23) (p = 0.1)
if too little: simple molecules essential to planet formation and life chemistry would never form
if too great: planets would form at the wrong time and place for life
18. parent star luminosity (11) (p = 0.0001)
if increases too soon: runaway green house effect would develop
if increases too late: runaway glaciation would develop
19. surface gravity (governs escape velocity) (12) (p = 0.001)
if stronger: planet's atmosphere would retain too much ammonia and methane for life
if weaker: planet's atmosphere would lose too much water for life
20. distance from parent star (13) (p = 0.001)
if greater: planet would be too cool for a stable water cycle
if lesser: planet would be too warm for a stable water cycle
21. inclination of orbit (22) (p = 0.5)
if too great: temperature range on the planet's surface would be too extreme for life
22. orbital eccentricity (9) (p = 0.3)
if too great: seasonal temperature range would be too extreme for life
23. axial tilt (9) (p = 0.3)
if greater: surface temperature differences would be too great to sustain diverse life-forms
if lesser: same result
24. rate of change of axial tilt (9) (p = 0.01)
if greater: climatic and temperature changes would be too extreme for life
25. rotation period (11) (p = 0.1)
if longer: diurnal temperature differences would be too great for life
if shorter: atmospheric wind velocities would be too great for life
26. rate of change in rotation period (14) (p = 0.05)
if more rapid: change in day-to-night temperature variation would be too extreme for sustained life
if less rapid: change in day-to-night temperature variation would be too slow for the development of advanced life
27. planet's age (9) (p = 0.1)
if too young: planet would rotate too rapidly for life
if too old: planet would rotate too slowly for life
28. magnetic field (20) (p = 0.01)
if stronger: electromagnetic storms would be too severe
if weaker: planetary surface and ozone layer would be inadequately protected from hard solar and stellar radiation
29. thickness of crust (15) (p = 0.01)
if greater: crust would rob atmosphere of oxygen needed for life
if lesser: volcanic and tectonic activity would be destructive to life
30. albedo (ratio of reflected light to total amount falling on surface) (9) (p = 0.1)
if greater: runaway glaciation would develop
if less: runaway greenhouse effect would develop
31. asteroid and comet collision rates (9) (p = 0.1)
if greater: ecosystem balances would be destroyed
if less: crust would contain too little of certain life-essential elements
32. mass of body colliding with primordial Earth (9) (0 = 0.002)
if greater: Earth's orbit and form would be too greatly disturbed for life
if lesser: Earth's atmosphere would be too thick for life; moon would be too small to fulfill its life-sustaining role
33. timing of above collision (9) (p = 0.05)
if earlier: Earth's atmosphere would be too thick for life; moon would be too small to fulfill its life-sustaining role
if later: Earth's atmosphere would be too thin for life; sun would be too luminous for subsequent life
34. oxygen to nitrogen ratio in atmosphere (25) (p = 0.1)
if greater: advanced life functions would proceed too rapidly
if lesser: advanced life functions would proceed too slowly
35. carbon dioxide level in atmosphere (21) (p = 0.01)
if greater: runaway greenhouse effect would develop
if less: plants would be unable to maintain efficient photosynthesis
36. water vapor quantity in atmosphere (9) (p = 0.01)
if greater: runaway greenhouse effect would develop
if less: rainfall would be too meager for advanced land life
37. atmospheric electric discharge rate (9) (p = 0.1)
if greater: fires would be too frequent and widespread for life
if less: too little nitrogen would be fixed in the atmosphere
38. ozone quantity in atmosphere (9) (p = 0.01)
if greater: surface temperatures would be too low for life; insufficient UV radiation for life
if less: surface temperatures would be too high for life; UV radiation would be too intense for life
39. oxygen quantity in atmosphere (9) (p = 0.01)
if greater: plants and hydrocarbons would burn up too easily, destabilizing Earth's ecosystem
if less: advanced animals would have too little to breathe
40. seismic activity (16) (p = 0.1)
if greater: life would be destroyed; ecosystem would be damaged
if less: nutrients on ocean floors from river runoff would not be recycled to continents through tectonics; not enough carbon dioxide would be released from carbonate buildup
41. volcanic activity (26)
if lower: insufficient amounts of carbon dioxide and water vapor would be returned to the atmosphere; soil mineralization would be insufficient for life advanced life support
if higher: advanced life would be destroyed; ecosystem would be damaged
42. rate of decline in tectonic activity (26) (p = 0.1)
if slower: crust conditions would be too unstable for advanced life
if faster: crust nutrients would be inadequate for sustained land life
43. rate of decline in volcanic activity (9) (p = 0.1)
if slower: crust and surface conditions would be unsuitable for sustained land life
if faster: crust and surface nutrients would be inadequate for sustained land life
(continued on next post)