11-11-25  •  The Selection Mechanism


Why Class Isn’t About Culture (And Never Really Was)

For years I’ve been circling around the same question: how does class actually work? Not how we talk about it, not how we moralize about it, but the underlying mechanism.

Critical theory has spent a lot of time explaining how class reproduces itself. Gramsci talked about hegemony. Althusser talked about ideological state apparatuses. Bourdieu talked about habitus — the idea that class gets written into our tastes, habits, posture, speech patterns, and expectations for life.

And all of that is insightful.

But there’s always been a problem hiding in plain sight. If class were really that deeply embedded in our personalities and culture… why can money override it so easily?

The example I use in my paper is the Titanic. On the Titanic, the classes were literally separated by steel gates. Steerage passengers down below, elites strolling the upper decks.

But one of the women walking those upper decks had been born to a poor laborer family. Molly Brown.

She didn’t grow up with elite manners or connections. She didn’t inherit the right accent or cultural capital. But she had money. And suddenly she was drinking tea with the aristocracy.

That simple fact reveals something important: class is much less about culture than we think. Culture follows something deeper.

The Idea: Class as a Flow System

In the paper I’m linking below, I try to explain class using a completely different lens: constructal theory.

Constructal law, proposed by physicist Adrian Bejan, describes how flow systems evolve. Rivers, blood vessels, traffic networks, tree branches — they all reorganize themselves over time to make flow easier.

Efficient channels widen while inefficient ones disappear. Nature does this everywhere.

My argument is simple: capitalism is doing the same thing.

Capital — money, investment, ownership, profit — is the “fluid” flowing through our social system. And the structures of society are constantly reorganizing themselves to move that flow more efficiently.

Schools, governments, corporations, even culture — they aren’t coordinating with each other consciously. They’re being selected.

Structures that help capital flow expand. Structures that block it get starved of resources or eliminated.

In that sense, class isn’t primarily an ideology or a cultural script. It’s a material flow architecture — a way of arranging people, institutions, and territory so capital can move efficiently toward accumulation.

Culture Isn’t the Engine — It’s the Exhaust

Once you start looking at society this way, a lot of strange things suddenly make sense.

It’s the same pattern you see in a river basin. Channels that carry the main current get carved deeper, while everything else erodes.

Culture, ideology, manners, tastes — these things adapt to the flow, rather than creating it.

Why This Matters

If this view is right, it changes how we think about social change.

Most political movements try to reform every institution individually — schools, media, government, corporations.

But if culture follows flow, then the real leverage point might be something else entirely: change the flows.

Re-engineer the channels that distribute resources, opportunity, and power, and the rest of society may reorganize around those new currents much faster than we expect.

After all, that’s what flow systems do.

Read the Paper

If you're curious about the full argument (and the references to Gramsci, Althusser, Bourdieu, and constructal theory), you can read the paper here:

Critical Constructal Theory: Class as a Material Flow System Optimized for Capital Accumulation
by Shara Merrill

Sometimes a theory doesn’t just explain something. Sometimes it changes what you’re looking at entirely.

And once you see it, you can’t unsee it.








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