Interesting TED talk on “Flow”, that sometimes elusive state in which you feel incredibly productive, in which hours fly by and seem like minutes, and when the activity in which you’re engaged is a joy.
It appears that when Sony was founded, they got the idea of flow and set up the company to best achieve it for their engineers. This slide is also interesting:
It claims that flow is only possible for high skills, high challenge tasks. That would explain why I regularly achieve a flow state for harder development tasks that require an extensive skillset, yet a more mundane period of bug fixing is less challenging and so is unlikely to lead to flow.
musingstudio 
Pingback: Usability woes | musingstudio