Summations Only

Your ears can hear - input is measured in hertz and decibels & output in nerve signals in amps and volts.
Your eyes can see - measured in hertz and lumens & output in nerve signals in amps and volts.Your coffee cup exists - measured in millimeters and gramsI can measure your coffee cup and get the same numbers (within margin of error) as you. These measurements are repeatable by anyone.You see Purpose? What does Purpose look like?If I say I don't see Purpose, how do you argue that it exists? How do you measure Purpose?For me, I can't follow your leap from eyes & ears operating under the laws of physics, chemistry, and biology to an unmeasureable Purpose.

Sand usually has a high drainage rate (hydraulic conductivity) assuming limited compaction and low ratios of silt and clay. It is all about the size and connectivity of the pores. Bigger particles have bigger pores and more likely to be connected pores so the water flows more easily - straight paths and less friction.Sand - 4.74 in/hr
Loam (sand, silt mix) - 0.13 in/hr
Clay - 0.01 in/hr
Source: Rawls, W.J. et al., (1983). J. Hyd. Engr., 109:1316. Water in the form of dew or rain falls on the soil and percolates in. The surface material is dissolved (for lack of a better term) by the relatively pure water. The now mineral laden water percolates down into the soil column. Given the limited volume of water available, the water will reach a point where the entire volume of water will be adhered to the surface of the soil pores (if the water table is too deep to reach). Movement of the water stops.From this situation, the dissolved minerals will bind to the soil due to evaporation of the water, absorption into the soil chemistry, etc.The deposited minerals will bind the soil particles together and gradually fill all the pores.One result is a sedimentary rock layer called caliche.
Caliche - Wikipedia Note that the deposition of the dissolved minerals won't change the basic structure of the soils, just fill the pores. I think this would be one method for lithifying a dune into sandstone with visible cross bedding.As the pores fill, less water will pass through the layer of forming caliche, so the soil above will hold the water. As that water evaporates, etc, the caliche layer will grow up. With enough time and water, the entire surface soil layer can turn into caliche. Edited by 14174dm, : No reason given.Edited by 14174dm, : Just can't leave it alone

The eye is obviously a crappy design for radiating waste heat from the brain. The Purpose was a beneficial use for a waste product as an active version of infra-red vision like the pit vipers with the eyes as emitters.Secondary use is to release gases and fluids from the head. You know what happens to people when their humors are out of balance.

Creation Science is the attempt to put literalist Protestant Christian teaching back in public schools. The courts have ruled outright creationism to be teaching a specific religion and so inappropriate for public school.That's why the big push to discredit old earth & evolution - to be able to proselytize in public schools and/or to protect specific religious beliefs from contradiction. Actually proving that creationism is scientific is not the point.What creationists don't seem to get or just don't care is that disproving old earth & evolution doesn't automatically prove creationism. Both could be wrong.I'm with Tangle on "Why the big fuss?" I think living up to "Love your neighbor" (Matthew 22:39) and "Do for the least" (Matthew 25:40) requires more than enough time & effort.I think that some of it comes from people who just HAVE to be right whether they are or not. The topic doesn't matter, just winning the argument.