>I've thought of another way to apply the four causes:
You're a bit mistaken for how to grasp some of the four causes. What it properly is is:
>Material Cause: What an object is made out of.
>Formal Cause: The shape that makes an object what it is.
>Efficient Cause: That which brings it into being.
>Final Cause: What the object specifically does.
To call material, formal and efficient causes "chemistry, geometry, and physics" somewhat hits on the issue but still misrepresents it a bit. Further, taking the final cause as theology or intelligent design misrepresents all included concepts. Theology is the study of religious thought in its various forms, intelligent design is the notion that complexity in nature cannot be founded by natural processes, and final causality is what innate regularity an object has. Diagnosis is a different sort of thing as well as a diagnosis is a willful imposition onto how certain things in nature are classified and final cause asserts that there is something internal to an object's form which will have the result in the same outcome consistently which implies something innate rather than imposed.
>Remember also this discussion stemmed from from this picture:
???
The topic I brought up came about here >>12919 or arguably here >>12875
Now take what I said of Efficient Causality. Science can help us understand the world and thus understand what the final cause of objects are but if there are no established final causes we cannot grasp what does what and so cannot make sense of efficient causality.
>The final cause became a catch-all.
It's a specific definition that defines one specific thing about an object.
>To demonstrate, Aristotle could use it for explaining why an "eternal" object kept its inertia (for that is its nature).
>could use it
All academic terms can be misused or given faulty answers.
>the final cause of an acorn is a tree
>Except when the acorn is rotting, or is to be roasted in a fire, or to satisfy a man's appetite.
That does not change the final cause of acorns. Simply because things don't reach their ends does not mean their ends did not exist. And as my first link in >>12932 expresses, deficiencies of individual examples of a thing (a deformed acorn) can weigh into different results but that doesn't change what we perceive of the nature of acorns. This is expanded on in greater detail on page 2 of that same link. And acorns being used in different ways does not change its nature either.
>Until the acorn's final moment, the philosopher still has to make a judgement call as to what the final cause will be.
You're applying final causes to individual examples of things rather than other examples of the same thing. Maybe I misled you to say "the final cause of AN acorn" and for that I apologize. When talking about what objects are (their essence, that is to say) we must speak of objects generally so to grasp the core of the situation. For example, we must see through all the crappy triangles I draw to realize that that isn't necessarily exactly what a triangle is (is doesn't need to be made in pen as I did, it doesn't need to be uneven, etc) so we must look through those examples of a triangle to grasp the essence of what it means to be a triangle. Same with specific things that arise in nature.
Sadly it seems much of what you wrote rests upon this misunderstanding. Again, I'm sorry to confuse you.
>This model is unsafe, and could easily lead to ambiguous wording like, "What is the final cause of disease?"
Only if it is misused, but that applies to any system. Take for instance my comment to >>12945 that the Four Causes deal with describing substances (unlike Humean causality, which describes events). "Disease" is a disorder of biological function/structure, which would get the same response from myself and people discussing the Four Causes that I gave to convection. It is important then to discuss substances related to disease such as the innate things that bring them about.
>When you say it is to destroy an organism, reproduce and spread to another, the virus sounds sentient, with a host of creationist implications.
This has literally no connection to creationism. Creationists like Paley (The Darwin of Intelligent Design, I guess I could describe him as) work under the modern framework that there are no final causes. You seem to be confused what Creationism even is. And to respond to your claim that they sound sentient, it could be taken like that mistakenly and that IS a common mistake. It is more accurate to understand it as things in nature making specific causes occur. That is to say that those things in nature are directed towards specific ends innately, without some will.