[abarwick]

To use? No, most modern languages can abstract to a high level. But senior JS developers that don't understand even basic memory management are not going to have a good enough handle on what's going on under the hood to be helpful. I think is more to do with them not being remotely curious, which is a prerequisite to good engineering.

[jamesfinlayson]

Agreed - for moderately big/moderately complex systems, there are plenty of problems that really need a moderate understanding of what the underlying runtime, operating system, network etc are actually doing.

[wly_cdgr]

Sure, I agree that they do. My point is they shouldn't