I think "really difficult" applies too.
Definitely. I was originally going to claim that it was outright impossible. But I decided it may technically be possible with sufficient control of the mind to enforce redundancy of thought and prevent too much creativity while recording.
Related to: Living Luminously
Well? Should you?
Linked is a treatise on exactly this concept. If the effects of recording and classifying every thought pan out like the author says they'll pan out... well, read a (limited) excerpt (from the Introduction), and I'll let you decide whether it's worth your time.
The full text is written in a stream-of-consciousness style, which is why I hesitated to post this topic in the first place. But there are probably note-taking junkies, or luminosity junkies, or otherwise interested folk amongst LW. So why not?
(Incidentally I'm reminded of Buckminster Fuller's Dymaxion Chronofile. I wonder how he managed it, or what benefits/costs it wrought?)