Course Keys **** Within God's Astronomically-Tiny Space-Ship-Earth wherein there are Exponentially-Growing-Human-Activities that consume Essential-Physical-Resources --- they are all being exhausted - - - to the extent that they are viewed as ESSENTIAL - - - because: 1. Activity generates garbage, pollution and increases in entropy., 2. Activity Degrades Fossil Fuel Supplies of Natural-Gas, Oil, Coal, U-235 and U-238. 3. No-Exponential-Growth-Process can continue without limit - - - within a limited context. 4. Greed and Egocentricity are - - - Deadly because they are Tragically-Misleading within limited contexts. 5. Collusive-Games-of-Mutual-Self-Deception cannot be Won. Exponential-Growth exists wherever some presence, activity or process increases by some percentage of its presence every year, month or day; and the higher the percentage per unit of time - - - the less Long-Term-Sustainable the Exponential- Growth will be. Every Exponential-Growth-Process of Humans is a threat to the Sustainability-of-Human-Civilization to the extent that it generates a significant NET: (1) Increase in "Garbage" = Entropy within Space-Ship-Earth and/or a significant NET exhaustion of finite supplies of available and usable PURE: Air, Water, Soils, Fossil-Fuels such as: Oil, Natural-Gas, Coal, U-235, U-238, Minerals and essential living species. The above is true because of the finite size of God's Astronomically-Tiny Space-Ship-Earth which is Essentially-Isolated from all other places within God's Cosmos, where there could be any significant alternative-accessible-usable supplies. In the past few decades, humans have NOT brought into Space-Ship-Earth from any Extra-Terrestrial-Source any SIGNIFICANT MATERIAL-RESOURCES of any kind; not even from the moon which is the nearest of all possible Extra-Terrestrial-Sources. The costs in energy to bring SIGNIFICANT MATERIAL RESOURCES into Space-Ship-Earth from Extra-Terrestrial-Sources will make such transport absurd. Only people whose Ultimate-God is the belief that such transport will become possible and profitable - - - will continue to believe in that fantasy/idolatry; as the belief runs contrary to what we know with great-scientific-reliability about the cosmos and the objective processes within the cosmos.