Loosely analogous to language? Do you know that one human DNA molecule contains enough information to fill a million-page encyclopaedia, or to fill about 1,000 books. This is to say that the nucleus of each cell contains as much information as would fill a one-million-page encyclopaedia, which is used to control the functions of the human body.
Do you know anything about information theory? That is, the branch of computer science that deals with the matter of information? If you impose a code onto anything, you can produce information from it.
Loudmouth's rock example is a perfect analogy - each of the trillions of atoms in a pebble is arranged in a specific, solid manner to form the end product, which is the rock. And to information theory, it
does not matter if that pebble is the hope diamond or a lump of coal; so long as the same number of atoms with the same entropy are present, the information content is the same. Similarly, if we impose the code of CAGT onto DNA nucleotides, it doesn't matter whether a string with a known length forms a human or an amoeba or a malformed mess of non-functional proteins; it contains
the same information.
Look, I'm sorry, but you keep invoking information and I keep getting more and more of an impression that you have
no idea what it is. Please define the term "information" as you are using it, and then
stick to that definition.
DNA can give us information from the information within it
Just like
any pseudorandom stochaistic process can give us information.
A physical system, or a mathematical model of a system which produces such a sequence of symbols governed by a set of probabilities, is known as a stochastic process. We may consider a discrete source, therefore, to be represented by a stochastic process. Conversely, any stochastic process which produces a discrete sequence of symbols chosen from a finite set may be considered a discrete source.
That's from Shannon's 1948 paper - the paper which, in essence,
created the field of information theory. DNA contains information in the exact same was as
any pseudorandom process. You could derive information from atomic decay. You could derive it from the order of atoms in a rock. You could derive it from the number of fish swimming down a particular river. It
doesn't matter. You cannot simply single out DNA like this; it is not some special case.
that allows us to determine if someone will be likely to have a form of disease. The letters within DNA give information as to how a feature or function will develop. DNA has meaning and that meaning can be known and understood.
Just like if you look at the order of atoms in a rock, you can determine what kind of rock it is. This is not impressive in any meaningful way. It all boils down to
chemistry.
The fact that you "think" that there is no reason to believe DNA could not have arisen by chance and random processes illuminates either your personal materialistic worldview or an underestimation of DNA itself.
No, it illustrates that we currently have no viable model for how DNA arose, and that we have no good reasons to exclude naturalistic, random processes.
Which only pushes the issue one step back. Why do we have laws of physics? Why should a universe contain laws anyway? Why are the laws and the matter that they apply to comprehensible to us? How is information comprehensible to us?
I don't know. I say that with honesty, integrity, and pride. I have
no idea why the laws of physics are the way they are. I don't know if they could be different or if them being different has any meaning. I don't know why certain things in the universe appear to be constant. Do you have a falsifiable hypothesis which you can corroborate with evidence?