Is free-will an illusion?

you no doubt misunderstood and are now misrepresenting him

Either that or he's a loon.

Where's the quote with hyperlink and/or full citation from a published work?

Q.: What does DNA do in my body?

A." Genes are made up of DNA. Genes give your body instructions—much like a blueprint or a recipe—for everything it needs to do to grow, develop, and live. One example is that genes give your body instructions for making proteins.

a molecule called deoxyribonucleic acid (DNA), which contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction....To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.

How are DNA sequences used to make proteins?

DNA's instructions are used to make proteins in a two-step process. First, enzymes read the information in a DNA molecule and transcribe it into an intermediary molecule called messenger ribonucleic acid, or mRNA.

Next, the information contained in the mRNA molecule is translated into the "language" of amino acids, which are the building blocks of proteins. This language tells the cell's protein-making machinery the precise order in which to link the amino acids to produce a specific protein. This is a major task because there are 20 types of amino acids, which can be placed in many different orders to form a wide variety of proteins.

Any object in our Universe deals, contains, processes, information, period.
Information is not a distant awkard abstraction but the "physical" outcome of concrete intructions and funtions operating in the world. The difference of states of affairs between object in configuration A and in configuration B a few moments later is a physical de facto change in information states. If anything information is not only in everything but literally it IS everything !

There is no IDENTITY without information, no thing at all...

Is there a special definition of "information" here?

What is Information?
A vast number of definitions of information have been proposed in widely different contexts. These include definitions from genetics, biology, psychology, linguistics, information technology, library science, literary interpretation, cultural studies, quantum physics, thermodynamics, and philosophy. In most cases, the proposed definitions have little applicability beyond the specialized topic of study....

The term physical information is used here for the concept that any physical non-uniformity, difference, or distinction is information. [comment: not to be confused with so-called "symbolic information"]

Physicists often use the term information to indicate conditions in the universe that do not involve symbols, media, and an interpretational infrastructure. For example, the geologic strata in rocks and sediments indicate the geological history of an area. One can argue that these strata are information.

The common, everyday use of the term information typically refers to some form of symbolic information. Dictionary definitions of information focus on knowledge, facts, and data. These definitions imply symbolic information. Physical information is more specialized and technical, and refers to the concept of information that is generally assumed with the mathematical models of information used in physics

According to the concept of symbolic information described here, a book is symbolic information because it was created by a living being specifically to symbolically represent certain conditions and ideas. Symbolic information is based on the creation of symbols in media, not whether the symbols are actually being perceived or used at a given point in time. It appears to me that symbolic information is the most important concept for understanding information processing in living systems.

Information and Intentionality

In discussing the concept of information in biology, John Maynard Smith (2010) identified two different contexts for the term information. He noted that a cloud provides information about the weather, but the cloud does not have the purpose of providing information about the weather. On the other hand, a weather forecast has the specific purpose of providing information about the weather. He described the weather forecast as information having “intentionality,” while the information associated with a cloud does not have intentionality. He identified the information in biology has having intentionality.

He also recognized the symbolic, creative nature of the intentional information in biology. “I think that it is the symbolic nature of molecular biology that makes possible an indefinitely large number of biological forms” (Marynard Smith, 2010, p. 133). His overall conclusions were similar to the concepts of physical and symbolic information described here, although he provided little consideration of the interpretational infrastructure or the disproportionate responses to symbols

As jargon goes, it looks like a poor choice to me. Where there is no possibility of false information, there is no information at all.

The common, everyday use of the term information typically refers to some form of symbolic information. Dictionary definitions of information focus on knowledge, facts, and data. These definitions imply symbolic information

Another excerpt from the same source comports with how I was defining "information" in my "island" post.

Pp is confusing information with mental, symbolic representation of information. The world is full of information.

Scientific discussions of information frequently fail to distinguish between symbolic and physical information. This oversight too often results in (a) attributing properties of symbolic information processing and life to nonliving processes, (b) an inadequate appreciation of the active role and complexity of the interpretational infrastructure, and (c) not recognizing the creative aspects of symbolic information processing.

Non-propositional information is an odd idea. What would be a specific example of it?

If I understand your question, then I think several examples have been given. Non-symbolic (i.e. "physical") information. Like the "fact" that a cloud is "dark."