We are faced with two choices as to where the specified complexity in all life originated. It either evolved through millions of lucky accidents, which even according to evolutionists is highly unlikely, or it was created. Creation is the only rational choice, because evolution fails to explain why specified complexity would arise spontaneously again and again and again.
For evolution the spontaneous appearance of specified complexity cannot be ignored because information is the centerpiece of life. You can have all the molecules for life available, but without information, or if the information is lost, life doesn't happen. The three major elements of evolution do not aid in any way in the creation of information.
Natural Selection: only maintains what information is created by variation and mutation. It cannot act on any information that doesn't exist. Observational science has actually shown that natural selection only slows the erosion of information in life, and this function is due only to the way life is designed. So natural selection is not the source of specified complexity in life.
Variation: is based on existing information, that is, specification that already existed. And while it can create many new combinations of this information, it does not create "new" information. Variation is not the source of specified complexity in life.
Mutation: destroys information, reduces specified complexity. Geneticists have known for quite some time that mutations are not beneficial; they are either neutral or harmful. And even neutral mutations build up over time to become harmful. Random changes, mistakes, misplacements in DNA does not improve the information, it destroys it. Mutation therefore cannot be the source of specified complexity in life.
There is only one known source of specified complexity. Intelligence. Life was intelligently designed. There should be no question about it.