Right, but ECC errors are rare. If your base rate is 20 per hour for 100,000 devices, and you see 1,000,000 there's likely something going on. My example was

Right, but ECC errors are rare. If your base rate is 20 per hour for 100,000 devices, and you see 1,000,000 there's likely something going on. My example was just to show that even MUCH noisier dataset (like phone motion) have been useful for detecting earthquakes that ECC should be MUCH easier.