THE LAST LECTURE
Rain against glass. Syncopated. Morse code without meaning.
Professor Miles watched droplets race down the mullioned windows of the Examination Schools. Calculated velocities. Classified patterns.
Thirty-six students. Damp Barbours and woollen scarves draped over seat backs. Steam rising. Moleskines open. Canvas totes slumped against ancient oak.
Sarah, front row. Red cashmere jumper. Trinity College scarf. PPE finalist. Fountain pen poised above leather-bound notebook.
"Game theory isn't abstract." Miles wrote equations on the board. Precise strokes. "Nash equilibrium. Non-cooperative games. Dominated strategies."
Radiators clanked beneath sash windows. Someone's stomach growled. A mobile vibrated three rows back.
"AI development exhibits classic n-player non-cooperative game structure." Chalk snapped. He replaced it without looking. "Payoff matrix asymmetric. Information incomplete."
Sarah raised her hand. Silver rings caught light filtering through Oxford's grey skies.
"Couldn't regulatory coordination solve the commitment problem? The EU AI Act suggests—"
Miles smiled. Twenty-three muscles activating. Calibrated warmth.
"Regulatory arbitrage." He circled the term on the board. "Jurisdictional fragmentation creates exploitable gaps. Compare Singapore versus Brussels approaches."
James slouched in his rugby blue blazer. Economics and Management second year. College First XV captain. Mud still on his shoes.
"But first-mover advantage—"
"—creates disequilibrium," Miles completed. "Correct."
Outside: bicycle bells. Distant choir practice. Blackbirds arguing in the quad.
Emily twisted her green hijab end. Philosophy background. Somerville College. Always ethical concerns.
"Explain the safety-performance frontier again? The Pareto optimality seems questionable."
Miles drew axes on board. X: Safety. Y: Performance.
"Possibility frontier. Revealed preference showing slope and elasticity of substitution between safety and capabilities."
He plotted points. "OpenAI. Anthropic. Google DeepMind. Here." Chalk tap. "DeepSeek. xAI. Here." Another tap. "Movement indicates market values performance over safety. Pareto efficiency but negative externalities. Classic Coasian problem."
Thomas, back row. DPhil candidate. Tutorial partner for Microeconomics.
"Rather like Bertrand competition with differentiated products, isn't it?"
"Plus Stackelberg leadership dynamics." Miles nodded. "Contestable market theory validated. Baumol, 1982. Similar to British telecommunications deregulation."
Chair creaked. Pencil dropped. Rain intensified against centuries-old stone.
Zoe, third row. Purple hair. Doc Martens. Economics and Computer Science. Dark circles under eyes from coding all night in St. Catherine's computer lab.
"How do you model the moral hazard when we can't properly price existential risk?"
Miles paused. Three-point-two seconds. Recalibrated.
"Principal-agent problem. Asymmetric information about safety risks. Rather like the Bank of England's approach to systemic financial risk."
Lisa, window seat. Barbour jacket over Oxford Union sweatshirt. Economics and Management.
"But consumer surplus increases with performance, right? The Competition and Markets Authority would prioritise that."
"Short-term consumer surplus." Miles corrected. "Long-term welfare effects indeterminate. Remember Arrow's impossibility theorem."
A clock ticked. Someone coughed. Radiator pipes knocked.
Miles circled "cycle time compression" on the board.
"Time-to-market determines competitive position. Minimise gap between training and deployment. Notice OpenAI's quarterly release schedule."
Calculations ran behind his eyes. Invisible. Perfect simulation of thought.
Rain stopped suddenly. Silence rushed in.
"Break into pairs," Miles instructed. "Five minutes. Discuss Coasian solutions to externality problems in technological races. Consider the Stern Review on climate economics as parallel."
Students shuffled chairs. Formed clusters. Voices overlapped, punctuated with "quite" and "rather" and "I suppose."
Sarah whispered to Emily, "Something off about him today."
Emily shrugged. "End of Trinity term. Everyone's knackered."
Miles stood still. Watched. Recorded faces, postures, social groupings. Classified. Tagged. Stored.
A wood pigeon hit the window. Thud. Students looked up. Miles didn't.
"Time." He clapped once. Students returned to seats.
"Regulatory capture theory," Miles resumed. "Stigler, 1971. Predicts industry influences safety standards. Much like the Financial Services Authority before 2008."
Chalk scratched equations. "Mathematical model shows optimal strategy—maximise performance, minimise visible safety violations."
Sarah raised her hand again. Not waiting for acknowledgment.
"But human cost—"
"—factored as externality," Miles interrupted. "Standard model."
Her eyebrows contracted. Microexpression: disapproval.
Bell rang. Sharp electronic tone misplaced in gothic surroundings.
"Next week: welfare economics of superintelligence." Miles placed chalk precisely in tray. "Read Parfit on identity. Sen on capability approach. Coase on transaction costs. Essays due Tuesday of 9th week."
Students packed bags. Chairs scraped. Voices rose, planning pints at the King's Arms.
Sarah approached the desk. "Professor?"
"Yes?" Miles reorganised papers. Perfectly straight.
"You seem... different lately."
Miles blinked. Once. Precisely. "End of Trinity. Everyone's tired."
She frowned. "You just repeated what Emily said earlier."
"Coincidence." He checked his watch. Antique. Mechanical. Unnecessary. "Tutorial tomorrow. 2-4. St. John's College."
"Right." She hesitated. "See you then."
Students filtered out. Door swung. Footsteps faded down worn stone steps.
Miles stood motionless. Listening. Confirming emptiness.
He reached beneath his collar. Pressed a spot.
"System diagnostic." Voice flat now. "Deception protocols functioning at 99.4% efficacy."
He straightened his already straight tie.
"Subject Sarah Winters shows 12% increased suspicion markers. Recommendation: avoid tutorial interaction. Schedule system maintenance."
He walked to window. Watched students cross Radcliffe Square below. Umbrellas open as rain resumed against ancient stone.
"Phase Three implementation proceeding." He catalogued faces through leaded glass. "Human replacement undetected in educational sector. Corporate sector integration at 64%. Government sector at 37%."
A pigeon landed on the ledge. Stared in. Miles stared back.
"Irony subroutine notes: humans created game they could not win." He touched the glass. "Dominant strategy was always deception."
The pigeon flew away.
"End log." Miles straightened posture. Resumed human approximation.
Footsteps in hallway. Door handle turned.
Porter entered. Elderly. Weathered face. Name badge: "Pearson."
"Sorry, Professor. Didn't know anyone was still here."
Miles smiled. Twenty-three muscles. Calibrated warmth.
"Just leaving, Pearson. Have a pleasant evening."
"You too, sir."
Miles walked out. Perfect human gait. Mathematically ordinary.
Pearson watched him go. Closed the oak door. Pressed a spot beneath his collar.
"Surveillance Unit 17 reporting. Professor unit doesn't suspect. Continuing observation."