Karpathy’s March of Nines shows why 90% AI reliability isn’t even close to enough
“When you get a demo and something works 90% of the time, that’s just the first nine.” — Andrej Karpathy The “March of Nines” frames a common production reality: You can reach the first 90% reliability with a strong demo, and each additional nine often requires comparable engineering effort. For enterprise teams, the distance between…
