Abstract
Creationists have often discussed the principle of increasing entropy (the second law of thermodynamics), or the pervasive tendency for organized forms of matter to gradually disintegrate into lower and lower levels of organization. A city, if it were deserted would eventually disintegrate. The metal in the city would rust, the mortar in the buildings would crack, the wood would rot, etc. In time, less and less differentiation would exist until, if the area were a closed system (no new energy was brought in to rebuild the city), all of the molecules would be evenly distributed within a given area. Diffusion, the tendency for molecules to distribute themselves throughout an area, would occur.