26 Apr 2025 01:06

What is stage five (like)?

A visual, kinesthetic, embodied experience 𐔸 A fish-eye lens and a magnifying glass 𐔸 The little clicker wheel 𐔸 Nurturing a plot of woodland 𐔸 Becoming the space, unstuck in time 𐔸 Freed up to play

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Transcript

What is the right question?

ā€œStage fiveā€ is a concept in adult developmental stage theory. That is—or used to be—a branch of academic psychological research. I think it may be very important. But stage five is somewhat mysterious. It’s not clear what it is.

Before asking ā€œwhat is stage five?ā€, there’s several other questions one ought to ask. Starting with: ā€œIS stage five?ā€ I mean, is this even a thing? Or is it just some sort of psychobabble woo? Why should we believe in this?

And then, what sort of thing is stage five, if it’s a thing at all? What is a stage, actually? How do we know whether something is a stage or not? How many are there? Which are they?

These are skeptical questions one ought to ask if you’re interested in adult developmental stage theory. Especially if you use it, or are considering using it.

I’m not going to address them at all now! That’s because the academic literature on this sucks. The answers available are vague, and they’re not well supported by empirical research. So I’m setting all this aside for now—although I plan to come back to it.

An exciting interdisciplinary scene

Instead, I’m going to give several answers to ā€œwhat is stage five?ā€, as if this was a clearly meaningful question. I’m going to give several because different theorists describe it in different ways.

That’s because they came to adult developmental stage theory with different intellectual frameworks, from different disciplines. In the 1970s and '80s, there was a really exciting scene, mainly at Harvard, in which researchers from different fields and departments were trading ideas about this.

Their different ideas seemed similar in important ways, but they also had major disagreements, reflecting their different lenses.

So, were they all actually talking about the same thing, like the blind men and the elephant? Or were they actually describing quite different things, all of which they called ā€œstage fiveā€ for inadequate reasons? Unfortunately, academic research in this area ended almost completely around 1990, probably for political reasons. And that means that at about the time that they were starting to do really good scientific tests of whose ideas were valid, if anyone’s, the whole thing just ended.

So we don’t know.

I’m mostly going describe my own understanding of stage five. It’s is generally consonant with that of many researchers in the field, but also somewhat eccentrically different. That’s because I came to the scene with different background knowledge than anyone else.

Everyone in the field starts from cognitive developmental psychology, and particularly Jean Piaget’s four-stage theory of children’s cognitive development. His fourth and final stage he called ā€œformal operations.ā€ He thought the essence of that was the use of propositional logic, a simple mathematical system.

Later researchers extended Piaget’s stage four to systematic rational thinking in general.

Piaget explicitly denied that there could be any stage five, because he somehow thought propositional logic was the highest form of cognition.

Starting in the early 1970s, researchers found that here are further, more powerful forms of cognition. They exceed not only propositional logic, but systematic rationality in general. Or, so the researchers thought; and I agree; and that’s what we call ā€œstage five.ā€

I come to this with b


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