Cersosimo — Decision Science & Engineering
The Lineage

A 2,500-year relay. One discipline at the finish line.

The discipline now in practice is the synthesis the others couldn’t have built — because the science wasn’t there yet, the access to data wasn’t there yet, and no operator had ever held all seven tools at the same time.

Each thinker on the chart below was right about the part they worked on. Each of them stopped at the edge of what their century allowed. Empedocles formalized the four elements and never imagined them applied to bodies. Hippocrates took them up and stopped at medicine. Sun Tzu read his enemies on horseback. Freud opened the unconscious and bounded it inside the clinical hour. Jung mapped the four functions and stayed at the diagnosis. Carnegie taught the relational moves and left you to filter the friends afterward. Cialdini codified six levers and stayed at the consumer surface.

Cersosimo & Associates is the firm built on picking up where each of them set their tools down — and adding the three things only the 2020s make possible: forty years of cognitive neuroscience, real-time information access, and a practitioner who has lived inside the operator, the magician, and the scientist simultaneously.

Sun Tzu read the battlefield before the battle.
We read the decision before the decider.

Russ Cersosimo · Cersosimo & Associates
The Baton Handoff

A 2,500-year relay. One discipline at the finish line.

Each thinker on the chart below didn't work alone. They handed something forward. What follows is the relay — and where the baton lives today.

The typology + unconscious relay
Empedocles
c. 450 BC · Philosopher
Names the four elements as the substrate of everything.
hands
forward
the four elements
Hippocrates
c. 400 BC · Physician
Applies to bodies. The four elements become the four humors.
hands
forward
a typology of medicine
Galen
c. 150 AD · Physician
Turns humors into the four temperaments. First Western personality typology.
hands
forward
the typology of character
1,750-year handoff
Freud
c. 1900 · Clinician
Opens the unconscious. Decisions live below awareness.
hands
forward
the unconscious
Jung
c. 1920 · Clinician
Maps four functions. Empedocles' four return — fused with the unconscious.
The applied-influence relay
Jung
(handoff point)
Four functions become a personality vocabulary the practitioner world inherits.
hands
forward
awareness of type
Carnegie
1936 · Salesman
Translates for the operator who never read Jung. The relational moves are born.
hands
forward
applied persuasion
Cialdini
1984 · Researcher
Six levers, codified and tested. Named — but stays at the consumer surface.
The strategy relay (parallel since 500 BC)
Sun Tzu
c. 500 BC · Strategist
Reads the field, positions before contact, wins without fighting. No typology layer — pure strategic foresight.
hands
forward
strategic foresight
never converges until today
The Convergence · Today · 2026
Cersosimo
Operator + Magician + Scientist

Holds all three relays simultaneously — typology, unconscious, strategy — plus three things no thinker before today had reasonable claim to: 40 years of cognitive neuroscience (Libet, Soon, Bargh), real-time information access (internet, AI, mobile), and a practitioner intersection (operator, magician-raised, Billy Mays-trained, formal psychology) that doesn’t show up often.

Plus the individualized read — Temporal Predisposition Mapping (TPM), producing Pre-Psychological Intelligence (PPI) — the scientific successor to the four-humors / four-functions tradition, grounded in the 2,500-year typology lineage and modern Big Five personality science.

The discipline now in practice: Decision Science (the universal read) · Temporal Predisposition Mapping (the individualized read) · Thought Engineering (the move).

The Capability Chart

What each contributed. What the discipline now extends.

Each row is one capability. Each column is one practitioner. Empty cells aren't criticisms — they are what that thinker's century, vocation, or access didn't make available.

Capability
What the discipline does
Empedocles
c. 450 BC
Philosopher
Hippocrates
c. 460 BC
Physician
Sun Tzu
c. 500 BC
Strategist
Freud
1900s
Clinician
Jung
1900s
Clinician
Carnegie
1930s
Salesman
Cialdini
1980s
Researcher
Today
Cersosimo
2026
Operator + Scientist
The four-element typology

Fire / Air / Water / Earth — the 2,500-year-old framework underneath modern personality science.

Formalized the four elements
Applied to bodies as the four humors
Mapped as four functions
Operationalized into a pre-meeting read
Reading the unconscious

The discovery that the conscious mind is downstream of decisions already made.

Opened the unconscious
Extended to archetypes + functions
Decision Science — the discipline of operating in the pre-conscious window
Temporal Predisposition Mapping (timing → temperament)

The individualized read. How temperament correlates with timing-based inputs — birth season, generational cohort, early-environment rhythm.

Four humors, mapped to bodies
Four psychological functions
Operationalized as TPM — the firm's named discipline
Strategic positioning & foresight

Reading the field and the adversary before the conversation begins.

Founded the discipline
Modern strategy + real-time intel access
Universal levers of persuasion

The repeatable moves that shift conscious decision-making at the surface.

Relational moves
Codified the six universal levers
Integrated, then extended into the pre-conscious layer
Predicting compatibility before meeting

Reading who you'll get along with — and how they'll decide — before the room.

Pre-Psychological Intelligence — the cheat code
Pre-conscious decision (Libet-grounded)

The empirical finding that consequential decisions are made before awareness.

Approached, not operationalized
Discipline built on 40 years of cognitive neuroscience
Designing the fork (Thought Engineering)

Engineering the conditions around each fork so the subconscious chooses the engineered path.

Implicit in terrain
Implicit
Implicit
Named, taught, and repeatable as Thought Engineering
Read + Move as one paired system

The two halves working together as a single operating discipline.

Read only
Read only
Read only
Read only
Read only
Move only
Move only
Paired disciplines, one operating spine
Repeatable firm-level installation

The system that runs underneath a practice, not a personality trick tied to one operator.

The Behavioral Revenue System
Modern access — internet, AI, mobile

What only becomes possible in the 2020s. Each thinker worked at the frontier of what their century allowed.

All seven toolkits — on the practitioner's phone
Practitioner background (operator + scientist)

Who the work was built by — and which rooms it's been tested in.

Philosopher
Physician
Strategist
Clinician
Clinician
Salesman
Researcher
Operator, magician-raised, Billy Mays-trained, formal psych education
What the top nine rows say

Each great put one or two tools down. The discipline now in practice picks them all up.

What the last two rows say

Access and pedigree are not personality traits. They are advantages no thinker before today had reasonable claim to.

What the chart doesn't say

That any of them were wrong. They weren't. The discipline now extends — it does not replace.

The Synthesis

Why this synthesis was not possible before.

Three things had to be true for the discipline you are looking at to exist. None of them were true before approximately ten years ago.

The neuroscience had to mature. Libet published the pre-conscious decision research in 1983. Soon, Brass and Heinze extended it with fMRI in 2008. The cognitive science underneath Decision Science is younger than the iPhone.

The access had to arrive. Cialdini wrote Influence in 1984 with a typewriter and a research library. Sun Tzu had a horse. A practitioner today carries Hippocrates, Sun Tzu, Freud, Jung, Carnegie, Cialdini, the neuroscience journals, and an AI research assistant on a phone. The barrier to integration was never intellectual. It was logistical. The logistics changed.

The practitioner had to exist. The integration requires the same person to have been an operator (who has had to close a deal under pressure), a magician’s student (who has watched the read on a room from the wings), a pitchman (who has sold a product on cadence and conviction alone), and a student of formal psychology (who reads the journals when they come out). That intersection is uncommon by design.

Next

If you want to see the discipline applied inside a practice.

The 60-minute briefing walks the discipline through one of the three practices — financial advisory, medical, or legal. The first conversation is short and honest about fit.