[mostlylurks]

The most powerful abstractions are typically not free. The rate of performance improvement from improvements in hardware has slowed down and might continue slowing down. Thus, the pressure to learn what happens behind various abstractions might actually increase, if advantageous performance improvements can primarily be obtained by peeling back the layers of abstraction at the cost of some development efficiency, since you can't just wait a couple of years for hardware to develop to a point where it can handle your inefficient abstraction anymore.