Experience shows that large amounts of specified complexity and information (especially codes and languages) invariably originate from an intelligent source–from a mind or a personal agent. Since intelligence is the only known cause of specified information, the presence of specified information-rich sequences in even the simplest living systems points definitely to the past existence and activity of a designing intelligence.”(parenthesizes original, bold italics mine, from p. 343)
Causal-existence: informational code-like language exists within DNA and causes Genetic effects on living organisms.
Causal-adequacy: the only known cause (even the only known single cause) necessary to produce the effect of informational code-like language of DNA is intelligence.
Since the intelligent design hypothesis meets both the causal-adequacy and causal-existence criteria of a best explanation, and since no other competing explanation meets these conditions as well–or at all–it follows that the design hypothesis provides the best, most causally adequate explanation of the origin of information necessary to produce the first life on earth.”Meyer, Stephen C. “Signature in the Cell” p. 343bold italics mine– p. 347
Our experience tells us that hieroglyphics, written languages, and computer code are all here as a direct result of purposeful intelligence. There is no other explanation. Likewise, the discovery of chemical letters of DNA composed in specific amino acid letters pen the language used to perform programmed functions similar to computer code within the living cell, also could have only emerged as a direct result of intelligence. There simply is nothing in our experience that would indicate any alternative answer other than intelligence.
Evolution tells us to ignore our design intuition. Richard Dawkins warns us not to be fooled by “the appearance of design”. Such claims seem to ask us to suspend our common sense and logic and instead to rest on the stories of the random chemical emergence of life. They encourage us to be conformed into a worldview where a universe has information emerging by natural causes (no one knows how) or more commonly by no cause at all. For the cause of chance they construct a universe where our very existence is based on miraculous mathematical serendipity. Or for the concept that information does not actually exist, Francis Crick theorized that intelligence and purpose are merely the firing of chemical synapses in our brains, which give us the delusion of purpose, mind, or intelligence.
Such evolutionary absurdity calls us to reconcile events we have never observed with stories that are based on conclusions which defy common sense.