I was born in the 90s so memory has been plenty for me during my programmers journey. Until I started doing more embedded signal peocessing stuff.
It is good to know how to use memory efficiently, even today. But it is also important to know that if you optimize for memory usage or speed you may be paying in another dimension. And in my experience a certain type of old programmer can have a total lack of awareness that e.g. in some cases readability, maintainability, ease of use for developers, display latency etc. can be dimensions that are priorized over another for really good reasons.
The admin equivalent of that is somebody who provisions the same hard disk space for a server today as they did in the 2000s and then have the machine run out of memory on every fourth kernel upgrade. It is good to only use the necessary resources, but not if you can't/won't handle the ugly consequences that may come with it.
It is good to know how to use memory efficiently, even today. But it is also important to know that if you optimize for memory usage or speed you may be paying in another dimension. And in my experience a certain type of old programmer can have a total lack of awareness that e.g. in some cases readability, maintainability, ease of use for developers, display latency etc. can be dimensions that are priorized over another for really good reasons.
The admin equivalent of that is somebody who provisions the same hard disk space for a server today as they did in the 2000s and then have the machine run out of memory on every fourth kernel upgrade. It is good to only use the necessary resources, but not if you can't/won't handle the ugly consequences that may come with it.