The finale separates reusable procedure from claims about unseen data. Two datasets show the same arithmetic path while keeping the honesty boundary visible.
highlighted = computed this step
First shown dataset
The first dataset gives a=11/10 and b=11/10.
a=11/10,b=11/10
Second shown dataset
The second dataset gives a=53/10 and b=-6/5.
a=53/10,b=−6/5
Final honesty boundary
The procedure re-applies across shown datasets, so the machinery generalizes across shown data. This does not predict unseen points and does not generalize to unseen points. We minimized SSE on the shown points exactly; this pins mechanics on toy data, not learning.