I was reading an article about the theories of “biologism” today, and was struck by something in the author’s criticism. Biologism holds that the mind is an entity that arises wholly from the physical structure of the brain. About one argument from proponents of biologism (not biologists… biologismists?), he writes (Wall Street Journal, Rethinking Thinking by Raymond Tallis):
…[Terrence] Deacon demolishes fashionable computational theories of the brain. Anyone in the future who is tempted to assert that “the mind is the software of the brain” should reflect on Mr. Deacon’s observation that the apparent agency of a computer “is just the displaced agency of some human designer.” The use of simplistic analogies to make the mind look machine-like and machines mind-like and thereby solve the mind-brain problem should never again pass unchallenged.
Setting aside the question of whether the biologicists are right or wrong, I’m curious whether “simplistic” is the right way to assess a theory at all. (In the quote above, the author is using “simplistic” to discredit an analogy, not a theory, but there is an undercurrent of this in his argument against the whole theory.)
Off the top of my head, I’d say the merits of a scientific theory are:
- Is it right? Does it predict events in the real world?
- Is it broadly applicable? Does it describe a large enough set of events to be useful?
In that context, I can see why a “simplistic” theory might seem like a bad one. “Simplistic” means, “too simple to be accurate.” So, the “simplistic” theory doesn’t meet the first criteria.
My problem, then, is with the idea that simplicity is the *reason* that the contested theory is inaccurate. Some of the most powerful theories are incredibly simple. Take Newton’s equations describing motion. F = m * a. Five symbols describe everything from the motion of a rolling ball to a rocket ship blasting off, to a planet circling the sun. Or Darwin’s theory of evolution–countless generations of intricate biological systems can be explained by a simple concept: survival of the fittest.
Simplicity is not only nice to have, but essential to a good theory. The goal of our theories is to describe millions of real and potential instances in a way that a human mind can comprehend and predict. What makes Newton’s laws such good mental tools is that they give us the ability to apply our understanding of a rolling ball to also describe objects in space millions of miles away.
If a theory is wrong, it’s not necessarily because it’s simple. So if you are accused of being “simplistic”, how do you amend your thinking? Do try to make it more complex? Do you heap on addendums and amendments?
Too often, “simplistic” is used not to help find a better explanation, but to contend that no explanation can be found, or at least that *you* can’t find one. Take the same WSJ author’s commendation of Mr. Deacon’s book:
“Incomplete Nature: How Mind Emerged From Matter”… does not deliver on its subtitle, but the author acknowledges the depth and complexity of the problem.
“Acknowledging the depth and complexity” is another way of saying you haven’t figured it out yet. How many times have we heard “it’s complicated” used by a public figure to escape a tough line of questioning from a reporter?
I hear “simplistic” and “complex” used this way with worrying frequency. In everything from presidential debates to business meetings, I’ve seen real attempts at a solution run up against a wall. These words don’t improve the quality of solutions… they stop a line of thought.
In business, teams often have both simplifiers and complicators. Simplifiers try to cut away any inconsequential details or non-essential problems that will prevent progress. Complicators try to add every possible situation and use case into the problem statement, hesitant to take a single step before the plan covers all possible scenarios.
The term “simplistic” carries the implication that simple is bad. That simple rules cannot describe complex systems. That the human mind is incapable of dealing with the overwhelming nature of the world. This is a paralyzing notion.
Instead of focusing negatively on simplicity, let’s first address what the theory gets right and what it fails to predict. The use of the word “simplistic” should never again go unchallenged.