Design Notes: Hugh Ross, 4 Spheres of fine tuning

Astronomer and Progressive Creationist Hugh Ross divides attributes (or constants) required for the support of physical life into four categories (based on the scope of the challenge) and with each, comments on the statistical probablity of such attributes occuring through "chance" occurance.


Part 1: Fine-Tuning for Life in the Universe — lists 140 features of the cosmos as a whole (including the laws of physics) that must fall within certain narrow ranges to allow for the possibility of physical life's existence.

http://www.reasons.org/files/compendium/compendium_part1.pdf

Part 2: Fine-Tuning for Intelligent Physical Life—describes 402 quantifiable characteristics of a planetary system and its galaxy that must fall within narrow ranges to allow for the possibility of advanced life's existence. This list includes comment on how a slight increase or decrease in the value of each characteristic would impact that possibility.

http://www.reasons.org/files/compendium/compendium_part2.pdf

Part 3: Probability Estimates for Features Required by Various Life Forms—identifies 922 characteristics of a galaxy and of a planetary system physical life depends on and offers conservative estimates of the probability that any galaxy or planetary system would manifest such characteristics. This list is divided into three parts, based on differing requirements for various life-forms and their duration.

http://www.reasons.org/files/compendium/compendium_part3.pdf

Part 4: Probability Estimates on Different Size Scales for the Features Required by Advanced Life—presents a breakdown of the characteristics required by advanced life (from Part 3) as they must occur, separately, in the galaxy cluster, galaxy, star, planetary system, planet, moon, planetary surface, and ecosystem where advanced life exists.

http://www.reasons.org/files/compendium/compendium_part4.pdf