Delt-IEt detects imminent failure in any physical system — no labels, no training, no domain parameters. One equation. Validated on NASA turbofan engines (100/100 detected), lithium-ion batteries (alert at 98.35% nominal capacity, 116 cycles before EOL), power semiconductors (zero false positives), and algae bioreactors. Same algorithm, four unrelated domains, zero retraining. Patent filed Brazil. Preprint: Zenodo. Kaggle notebook with real NASA data available
