I had both CNN and Twitter on yesterday all afternoon, looking for news about the Boston Marathon bombings. I have not done a rigorous analysis (nor will I, nor have I ever), but it felt to me that Twitter put forward more and more varied claims about the situation, and reacted faster to misstatements. CNN plodded along, but didn’t feel more reliable overall. This seems predictable given the unfiltered (or post-filtered) nature of Twitter.

But Twitter also ran into some scaling problems for me yesterday. I follow about 500 people on Twitter, which gives my stream a pace and variety that I find helpful on a normal day. But yesterday afternoon, the stream roared by, and approached filter failure. A couple of changes would help:

First, let us sort by most retweeted. When I’m in my “home stream,” let me choose a frequency of tweets so that the scrolling doesn’t become unwatchable; use the frequency to determine the threshold for the number of retweets required. (Alternatively: simply highlight highly re-tweeted tweets.)

Second, let us mute based on hashtag or by user. Some Twitter cascades I just don’t care about. For example, I don’t want to hear play-by-plays of the World Series, and I know that many of the people who follow me get seriously annoyed when I suddenly am tweeting twice a minute during a presidential debate. So let us temporarily suppress tweet streams we don’t care about.

It is a lesson of the Web that as services scale up, they need to provide more and more ways of filtering. Twitter had “follow” as an initial filter, and users then came up with hashtags as a second filter. It’s time for a new round as Twitter becomes an essential part of our news ecosystem.

There’s a knowingly ridiculous thread at Reddit at the moment: Which world leader would win if pitted against other leaders in a fight to the death.

The title is a straightline begging for punchlines. And it is a funny thread. Yet, I found it shockingly informative. The shock comes from realizing just how poorly informed I am.

My first reaction to the title was “Putin, duh!” That just shows you what I know. From the thread I learned that Joseph Kabila (Congo) and Boyko Borisov (Bulgaria) would kick Putin’s ass. Not to mention that Jigme Khesar Namgyel Wangchuck (Bhutan), who would win on good looks.

Now, when I say that this thread is “shockingly informative,” I don’t mean that it gives sufficient or even relevant information about the leaders it discusses. After all, it focuses on their personal combat skills. Rather, it is an interesting example of the haphazard way information spreads when that spreading is participatory. So, we are unlikely to have sent around the Wikipedia article on Kabila or Borisov simply because we all should know about the people leading the nations of the world. Further, while there is more information about world leaders available than ever in human history, it is distributed across a huge mass of content from which we are free to pick and choose. That’s disappointing at the least and disastrous at its worst.

On the other hand, information is now passed around if it is made interesting, sometimes in jokey, demeaning ways, like an article that steers us toward beefcake (although the president of Ireland does make it up quite high in the Reddit thread). The information that gets propagated through this system is thus spotty and incomplete. It only becomes an occasion for serendipity if it is interesting, not simply because it’s worthwhile. But even jokey, demeaning posts can and should have links for those whose interest is piqued.

So, two unspectacular conclusions.

First, in our despair over the diminishing of a shared knowledge-base of important information, we should not ignore the off-kilter ways in which some worthwhile information does actually propagate through the system. Indeed, it is a system designed to propagate that which is off-kilter enough to be interesting. Not all of that “news,” however, is about water-skiing cats. Just most.

Second, we need to continue to have the discussion about whether there is in fact a shared news/knowledge-base that can be gathered and disseminated, whether there ever was, whether our populations ever actually came close to living up to that ideal, the price we paid for having a canon of news and knowledge, and whether the networking of knowledge opens up any positive possibilities for dealing with news and knowledge at scale. For example, perhaps a network is well-informed if it has experts on hand who can explain events at depth (and in interesting ways) on demand, rather than assuming that everyone has to be a little bit expert at everything.