This is an amazing set of thoughts. I share Fred's concern about attention deficit... my head is racked everyday attempting to keep up with 187 feeds I'm tracking. I find myself reading feeds whenever I have as little as 2 minutes on the schedule and this jamming up is resulting in my having a lowered degree of comprehension about what I'm actually reading.
Lately I have been cleaning up my blogroll in an attempt to weed out the feeds that are not updated at all or very infrequently. Somebody please please please come out with a bookmark/feed organizing model based on update frequency and/or the frequency by which I read the feeds. In other words, move the stuff I'm most likely to want to read up to the top of the list.
The other thing that is interesting to consider is that we have crossed a threshold by which all the interesting stuff that there is to cover is getting written about on a daily basis and the great bulk of blog postings are now linking to other blog postings (insert guilty plea here). True? I don't know but I read a lot of blogs on a daily basis and I am struck by the somewhat anecdotal observation that this may be happening. Perhaps this points to the greater knowledge problem of jumping to other topical launch pads that are outside of normal observational purvue based on relevancy. Plattner talks about this as a driving motivation behind the d.school initiative that he funded, that when you bring together students from the medical, philosophy, archeological, anthropology, and whatever other disciplines to solve computer science problems you get a vastly better solution that if the CS school alone works the problem. How do we do that with blogs? How do I find nonlinear data sets that may be relevant to something I'm interested in without relying on the ingenuity of my own keyword searches?
On another note, if you get the opportunity to sit down with Umair Haque and just talk, do it because he's one of the smartest and most articulate people I've had the pleasure to meet.
So attention is a zero sum game and if we are creating (at an exponential rate?) more uses of attention, then we are facing a looming attention crisis.