I disagree wholeheartedly.

Mindless browsing will occupy my attention, keeps me distracted and on the edge, draining my energy and mental capacity, makes me jittery - even if this realization took me quite some time.

A walk in the woods is refreshing and my mind is focused, wandering maybe aimlessly, but well-paced, on its own time, makes me relaxed and open-minded.

We like distraction, our mind craves it, often we don't want to think about what bothers us. But allowing all the random itches that bother us is the only way to address them and let them go.

Also, I have zero, NIL creativity after mindless browsing, I am drained.

Alone with myself and my thoughts on a train or a walk the thoughts are no longer buzzing, they are forming, transforming, becoming real ideas.