4 · Three-Dimensional Space

4: Three-Dimensional Space | StructLang

You need to hire someone.

During the interview, this candidate performs well:

Capability dimension:

Low capability(-) ←—— 0 ——→ High capability(+)
                              ↑
                            +0.8

Strong capability, solid technical skills.

Attitude dimension:

Bad attitude(-) ←—— 0 ——→ Good attitude(+)
                              ↑
                            +0.9

Good attitude too, showing strong work motivation.

On the “capability × attitude” surface structure, they’re (++), looking quite ideal.

You hire them.

The Problem Three Months Later

Three months later, you notice something’s wrong.

This person:

Talks eloquently in meetings (attitude +)
Technical knowledge is indeed solid (capability +)
But task progress is zero (action -)

They come to work on time every day, attend all meetings, speak actively, but just don’t do things. Or rather, don’t actually advance work.

You look back at your interview judgment:

     High capability(+)
        ↑
        |
        |  (++)
        |  They're here
--------+--------→ Good attitude(+)
        |

Right, capability + attitude +, indeed (++).

But you missed the third dimension: Action.

The Third Dimension

If we add the “action” dimension:

Intention: Evaluate whether this person is suitable for hiring

Three dimensions:
- Action: Whether actually advancing work
- Quality/Capability: Whether has capability to complete work
- aTtitude: Whether has willingness to work

Now, you re-evaluate this person:

Action: - (not advancing work)
Quality: + (solid technical skills)
aTtitude: + (shows enthusiasm)

Their true state is (-,+,+), not (+,+,+).

This is three-dimensional structure.

Three Axes Intersecting

Putting three axes together forms a three-dimensional space. Corresponding to point structure, line structure, and surface structure, we can also call this “body structure” or “volume structure”:

        Action(+)
          ↑
          |
          |
       O  +————→ Quality(+)
         /
        /
       ↙
   aTtitude(+)

Three axes extend from the same origin O in three directions.

What is origin O?

Still the same intention: “Evaluate whether this person is suitable for hiring.”

The origins of the three axes must coincide, which means:

All three dimensions serve the same intention
Not three independent judgments
But one three-dimensional combined judgment

If the origin of the third axis isn’t here (say you suddenly consider “are they attractive”), that axis cannot intersect meaningfully with the first two to form a three-dimensional structure.

Eight Regions

Three axes intersecting create eight regions.

Why eight?

Because each dimension has two states (+ or -), the combination of three dimensions is: 2×2×2 = 8.

Eight combinations:

(+,+,+) - Action+, Quality+, aTtitude+
(+,+,-) - Action+, Quality+, aTtitude-
(+,-,+) - Action+, Quality-, aTtitude+
(+,-,-) - Action+, Quality-, aTtitude-
(-,+,+) - Action-, Quality+, aTtitude+ ← That candidate is here
(-,+,-) - Action-, Quality+, aTtitude-
(-,-,+) - Action-, Quality-, aTtitude+
(-,-,-) - Action-, Quality-, aTtitude-

That candidate falls in the 5th region: (-,+,+).

Has capability, has willingness, but no action.

Why These Three Dimensions?

You might ask: Why choose “Action, Quality, aTtitude” as these three dimensions?

Because under the intention “evaluate whether someone is suitable for hiring,” these three dimensions are most critical:

Quality: Can they do it
aTtitude: Do they want to do it
Action: Are they doing it

Three dimensions answer three different questions.

But note: Dimensions aren’t limited to these three.

If your intention is “evaluate an investment project,” the three dimensions might be:

Return: Is it profitable
Risk: Is it safe
Timing: Is now the right time

If your intention is “choose a restaurant,” the three dimensions might be:

Taste: Is it delicious
Price: Is it expensive
Distance: Is it far

The key to three-dimensional structure isn’t which specific three dimensions to use, but: Under the same intention, simultaneously consider three related judgment dimensions. Dimensions cannot completely overlap, or the structure collapses; but they must be related, or they cannot jointly serve the same intention.

In subsequent chapters of this book, we’ll extensively use these three dimensions: “Action (A), Quality (Q), aTtitude (T).”

Why choose these three?

Because they have strong universality when evaluating subject behavior:

Action: Whether doing
Quality: Whether capable of doing
aTtitude: Whether wanting to do

These three dimensions:

Relatively independent (don’t completely overlap)
Highly related (jointly determine subject performance)
Broadly applicable (apply to most subject evaluation scenarios)

But this isn’t the only choice.

Under other intentions, the three dimensions might be completely different:

Evaluating investment projects: Return, Risk, Timing
Choosing restaurants: Taste, Price, Distance
Evaluating cities: Opportunity, Environment, Cost

Remember: Dimensions are determined by intention, not fixed templates.

A/Q/T is just a set of dimensions validated as effective in the most common scenario of “evaluating subjects.”

Formation of Judgment: From Sequential to Holistic

The formation of three-dimensional structure isn’t instantaneous—it’s a process.

Judgment formation is sequential:

When you interviewed that candidate, your attention actually focused sequentially:

They’re answering questions (a form of action) → Observed “shows enthusiasm”
The content of their answers (capability manifestation) → Judged “solid technical skills”
Their expression, tone (attitude signals) → Felt “very motivated”

These three judgments didn’t happen simultaneously, but formed sequentially during the several-minute interview.

But after judgment completes, it gets compressed into a whole:

At the interview’s end, your brain doesn’t separately store three independent judgments:

“Action: +0.7”
“Quality: +0.8”
“aTtitude: +0.9”

Rather, they’re compressed into a holistic impression:

“This person is good”

This “good” is the comprehensive compression result of three dimensions.

More critically: Which dimensions get compressed in?

In the interview scenario, you might have noticed:

Quality (because they’re demonstrating)
aTtitude (because they’re expressing)

But didn’t fully notice “real action capability” because:

The interview scenario itself can’t fully demonstrate action capability
“Answering questions” as action isn’t the same as “advancing work” as action
Your attention was occupied by “quality” and “attitude”

So what you actually formed is an incomplete three-dimensional structure:

Quality: + (clear)
aTtitude: + (clear)
Action: ? (vague or ignored)

Your brain automatically filled in the “action” dimension:

“Strong capability + good attitude → action should be fine too”
This is automatic inference, not real observation

Three months later, when you discover they don’t advance work, the real judgment “action-” enters, and the entire three-dimensional structure becomes truly complete.

At this point a leap occurs:

During interview (incomplete):
- Quality: +
- aTtitude: +
- Action: + (inferred, not real)
→ Overall impression: (+,+,+) "This person is good"

Three months later (complete):
- Quality: + (verified)
- aTtitude: + (verified)
- Action: - (truly exposed)
→ Overall impression: (-,+,+) "This person has problems"

Invoking Three-Dimensional Structure: Instantaneous Holistic Feeling

Although judgment formation is sequential, structure invocation is instantaneous.

Three months later, when you think of this person again:

You won’t sequentially recall “their action is insufficient, capability is okay, attitude is good”
Rather, you instantaneously produce a holistic feeling: “This person isn’t great, has capability but doesn’t advance”

This holistic feeling is the result of invoking the compressed three-dimensional structure.

Analogy:

Judgment formation = Taking a photo (scanning pixels one by one, with sequence)
Structure storage = The photo (compressed into a whole)
Structure invocation = Viewing the photo (instantly seeing the complete picture)

When viewing a photo, you don’t say “I look at the left first, then the right, then the middle,” but rather “I see the entire picture at a glance.”

But this “at a glance” complete picture is formed from previous sequential scanning compressed together.

Why Are Dimensions Easily Missed?

Precisely because judgment forms sequentially, certain dimensions are easily missed:

Limited attention capacity:

You can only focus on one dimension at a time
If a dimension isn’t prominent enough, it gets skipped
During interviews, “action capability” isn’t prominent enough (because it’s just answering questions)

Scenario limitations:

Some dimensions can’t be fully demonstrated in the current scenario
Interview scenarios can’t demonstrate “long-term work advancement” action capability

Experiential inference:

The brain automatically fills in missing dimensions
“Capability + attitude + → action should also be +”
Such inference is often unreliable

This is why we need “complete three-dimensional structure”:

Remind yourself:

Which dimensions am I using to evaluate?
Is each dimension actually observed, or inferred?
Can the current scenario fully demonstrate these dimensions?

Different Feelings of the Eight Regions

Now looking at these eight combinations, each gives a completely different feeling:

(+,+,+): Full Positive State

Doing, can do, wants to do
Most ideal state

(+,+,-): Capable but Resistant

Doing, can do, but doesn’t want to
Possibly under pressure

(+,-,+): Enthusiastic but Incapable

Doing, can’t do well, but really wants to
Beginner or volunteer

(+,-,-): Blind Action State

Doing, can’t do well, doesn’t want to do well either
Most dangerous state

(-,+,+): Potential State ← That candidate

Not doing, but can do, and wants to
Possibly waiting for opportunity, or lacking drive

(-,+,-): Observing/Waiting State

Not doing, can do, but doesn’t want to
Deliberately not cooperating

(-,-,+): Accumulating State

Not doing, can’t do, but wants to help
Willing but unable

(-,-,-): Full Negative State

Not doing, can’t do, doesn’t want to either
Completely unsuitable or no involvement

Each combination is a “pattern,” each with its specific meaning and response approach. These combinations aren’t labels, but snapshots of states. Each snapshot can leap through time—it’s these leaps that bring structure to life.

A Single Person Isn’t Enough

Three-dimensional structure lets you see clearly one person’s state.

But in reality, you’re not just evaluating one person—you’re dealing with your relationship with them.

Back to that candidate:

You: (+,+,+) - Fully advancing the project
Them: (-,+,+) - Has capability and willingness but no action

This isn’t two independent evaluations, but a relationship structure.

Your (+,+,+) encountering their (-,+,+), what happens?

You feel frustrated (I’m pushing hard, they’re not moving)
They might feel pressure (your expectations and their state don’t match)
The project falls into difficulty (you can’t complete everything alone)

Structure doesn’t stay with one person, but extends into relationships. This “subject-object structure combination” forms a six-dimensional relationship space:

You (Action+, Quality+, aTtitude+) × Them (Action-, Quality+, aTtitude+)
= 3 dimensions + 3 dimensions = 6 dimensions

“You: (+,+,+) × Them: (-,+,+) = 6-dimensional relationship.” This is the next level: Subject-Object Structure.

3 · Combined Judgment 5 · Two-Person Game