The headline seems a bit sensationalized, but there certainly are major forces pushing hard drives toward being a niche storage technology rather than a mainstr

The headline seems a bit sensationalized, but there certainly are major forces pushing hard drives toward being a niche storage technology rather than a mainstream or default choice. Hard drive prices ($/TB) haven't been improving as quickly as SSD prices. SSDs have already overtaken hard drives for low capacities. For datacenters, SSDs provide more TB per rack unit. As drives get bigger, hard drive performance characteristics become more tape-like; some workloads will be unable to benefit from better $/TB of larger drives because they cannot tolerate the performance hit of consolidating more data behind a single actuator. At scale, whether to use hard drives or SSDs is not so much a question or how much capacity or performance you need, but the ratio of capacity to performance. Hard drives are best for cold data, SSDs have been the choice for hot data and are taking over for warm data.