With the invention of complex control systems, and especially with the invention of solidstate electronics and the computers, we have been loosing our mental jobs to the machines.
Everything, all of the electronics on the vehicle itself, every component had its own solid-state circuit breaker so that we could turn things on and off, and control what was happening.
Control of power utilization in these data centers will drive new tiered storage approaches with solidstate storage combined with HDDs and with new non-volatile memory using either flash memory or new approaches such as MRAM.