> If every drive type, new and old, big and small, did better this year, maybe they changed something in their environment this year? It can also be the case t

> If every drive type, new and old, big and small, did better this year, maybe they changed something in their environment this year? It can also be the case that newer drives this year are better than newer drives last year, while older drives are over a "hill" in the failure statistics, e.g. it could be the case that there are more 1st-year failures than 2nd-year failures (for a fixed number of drives starting the year).