>>... I am very impressed with "around 8h coding work"!
>
>Why?

Because you could put a number to it? I remember how I would spend perhaps 9-10 hours a day at the keyboard, out of which some six to seven hours was coding or otherwise work related... And then the actual number would always be eight hours of more of work, because I'd keep thinking, somewhere in the background, of the current problems, shuffling them tiles until they fall into place...

Among my productivity boosters the main one is the view from our big room to our backyard, which is always cozy and tucked in and almost always green. I'd just lean on the doorframe and gaze into the green, and once my wife asked me what I was doing. I checked what I actually was doing at the moment and had to honestly confess that „I'm working“.