It is the PATTERN of commonality which points to evolution, and that pattern is a nested hierarchy.
Lines of Evidence: Nested Hierarchies
Humans who design using similar blue prints do not produce designs that fall into a single, objective nested hierarchy. Cars do not fall into a nested hierarchy. Buildings do not fall into a nested hierarchy. There is NO reason why common design would produce a nested hierarchy. It would actually take extra effort to make common design look like evolution, and that effort would be useless for any functional reason.
BUt if you looked at not just cars but all mechanical things would that show much variation within the design. So then you would not just have cars but also boat engines that go on water, train engines, plane engines that fly, computers, clocks, TVs, cranes, conveyor belts, ipads, robotics and anything that moves or works mechanically is all man made. They all perform different functions and all look different but have common mechanisms some in related areas such as electronics but all are more or less mechanical and man made. There is a relationship between them all and there are basic blue prints up to more complicated designs but all are traced back to a simple device that started it all. All will have aspects of the others from simple to complex depending on their purpose.
For example, scientists have actually replaced cytochrome c in yeast with the human version of the gene. The two genes differ by 40%, and yet they both functionally equally fine in yeast. So why change a design to mimic a nested hierarchy predicted by evolution when an exact copy works just fine?
29+ Evidences for Macroevolution: Part 4
Why, if you are a designer, do you not give anything feathers a set of three middle ear bones? Why don't we see a single fossil or living species with a mixture of mammal and avian features? Why do we only see the pattern of shared characteristics that evolution would produce?
Because that is probably not possible in the genetic code. From what i understand with genetics it is a complicated process of sorting, matching, sequencing, fitting, accepting, rejecting, synthesizing and a whole lot of other thing all working together to an exact process. So there is a process that is followed and you cant put a round peg in a square hole. If that happens then it will be defective in some way. It all fits together nicely to produce a living cell. With natural selection it relies on mutations and something to go wrong to produce a different outcome which will create a variation of the gnome which will produce the change eventually in the organism. So almost a mistake makes something better and more complicated.
The process is so exact and complicated that to think you could get the amount of species with different shapes and sized creatures it would need eons of time. Thats even if it happens as this is partly done by chance that either the organism sort of knows that it needs that particular change to adapt or after many chances the right change in that complicated process comes up and is taken on. We are composed of some 3 billion genetic letters in the DNA molecule so over time all that had to happen by more or less mutations, chance and lining up the right sort of adaptaion that would work and be taken on in the genes to adapt and survive.
If man has built all the machinery in the world including the computer "and its not the vessel but the written codes and stored information that make it work" if we see man make this happen with a complicated computer codes then how can you say something many times more complex wasn't from some intelligent design but had to have a lot of things fall into place to happen.
A teaspoon of DNA, could contain all the information needed to build the proteins for all the species of organisms that have ever lived on the earth, and "there would still be enough room left for all the information in every book ever written. Who or what could miniaturize such information and place this enormous number of 'letters' in their proper sequence as a genetic instruction manual? Could evolution have gradually come up with a system like this?
"The data at the core of life is not disorganized, it's not simply orderly like salt crystals, but it's complex and specific information that can accomplish a bewildering task, the building of biological machines that far outstrip human technological capabilities" the average mistake that is not caught turns out to be one error per 10 billion letters. If a mistake occurs in one of the most significant parts of the code, which is in the genes, it can cause a disease such as sickle-cell anemia. Yet even the best and most intelligent typist in the world couldn't come close to making only one mistake per 10 billion letters—far from it.
So to believe that the genetic code gradually evolved in Darwinian style would break all the known rules of how matter, energy and the laws of nature work. In fact, there has not been found in nature any example of one information system inside the cell gradually evolving into another functional information program.
It all comes down to one question. Why the massive amounts of extra effort to make common design look like evolution occurred?