It's a matter of perspective. When one witnessed it from times of Pong until now, it is maybe much easier to appreciate the whole journey. I still find myself trying to save bandwidth on my internet connection that was very scarce resource not-that-long-ago. When I see people listening to music via youtube, unnecessarily transfering all that video content that nobody really watch, I want to cry :). Same with programming - going from ZX to where we are now, you can easily feel the luxury of having almost infinite memory and CPU power. And of course, games now are hardly comparable to what we had on ZX. Great thing is to step back and try to program things like Arduino or ESP8266/ESP32 where you, again, have to think twice about resources.