This little bubble of thought reminded me that I have had in mind for some time a system for recording conversations in a more than linear fashion – because, after all, conversation is rarely as linear as we think. Instead you’d hook up some voice recognition software to a natural language parser which (being really far better than anything I’m aware of at the moment) could produce an abstract tree of the conversation and its junction points, perhaps being able to tag the junctions (the bits you’ll come back to later) by means of a search through the speaker’s web presence or indeed her other conversations… and could then project the whole thing in glorious 3D, allowing conversationalists not only to have a conversation, but to create one like a work of art, painted in front of them in real time. You could zip back frequently to things you’d meant to mention, and produce a densely branched structure… you could colour each speaker’s threads, and see which of you was more like to leap into monologue. Of course there are potential pitfalls. What if you discover you really do have the most dreadful habit of interrupting something significant with something trivial? Well, I suppose it’s better to learn it that not, although you might want to try out a few trial conversations before going public with your art.

I love the idea of being able to treat conversation as a durable art one could revisit or reopen. I love the idea of all the things you could do with a durable conversation. Cross-reference one to another. Invite people to join in later. Have time-lapsed conversations (a little like a Google Wave, but with something more like exclusive locking); have conversations with complete strangers. Have a public archive of good conversations and continue them yourselves, getting together with a few friends to tag a branch onto a chat about Nixon in China or public policy.

Then there’s all the aggregate information you could extract. What topic clusters are most likely to send you off on a tangent? How often do you lose track of your line of argument? On what topics are you most likely to underparticipate? Is there any correlation between how much you enjoyed a conversation and any other metric you can invent? What are the most common topics under discussion when conversations ABEND? How do they vary by country or geographic region?

And following on from that of course the privacy and security challenges that a sort of publicly available archive of conversations — which are, after all, some of our most private moments — would pose. I’m not suggesting that you’d have a conversation plotter running in the wee small hours to catch pillow talk and automatically uploading it all to Wikipedia; but even assuming we were limiting ourselves to willingly produced material, how do you manage the material? Do the participants have ownership? Is the addition of a new branch additive or transformative? Could branches be secured so that only certain people could follow them (which is similar to the “gevulot” concept which manages shared memory in Hannu Rajaniemi’s excellent The Quantum Thief), or so that only certain people could contribute….

I could yammer about this all night, but I’m jetlagged enough to be heading off to bed, so I shan’t. It’s worth dropping in, though, that the other obvious-ish message here is that all that stuff around privacy and managing sharing isn’t something uniquely posed by this new way of tracking conversation; it’s just that there are a set of existing rules and possibilities which we’re so used to we don’t see them (or call them basic social skills). As McLuhan had it, the environment is invisible. Good night!

Personally I’d like to know who the contractor was on the tunnel, because a tunnel of (veery roughly) some 500 miles (that’s more than 20 times longer than the channel tunnel), presumably running a couple of miles below the surface of the earth in consequence, sounds like a pretty good bargain. Especially when one estimate of the Channel Tunnel costs put them at £4650 million in 1985 money.

That gives you a construction cost of .. let’s see… £90,000/mile, compared to the Channel Tunnel costs of £148,000,000/mile (3 s.f.), or one one-thousand, six hundred and forty-fourth of the cost. I knew Italian builders were good, but this really does take the biscuit.

Also — who knew neutrinos needed a tunnel?

Sat on Richmond Green, enjoying an excellent pistachio ice-cream from Gelateria Danieli (genuinely extraordinarily good; drop by). Watching kids running around with footballs and dolls. It all seems incredibly far away from sovereign debt and credit default swaps and service-oriented architecture… Does this say more about how amazing humanity is at tackling complex stuff when it would really rather be in a park, or something vaguely zen-ish about maintaining room for a little bit of play and even silliness in life?

“As ridiculous as two walnuts judging a quilting competition and failing all entries for not resembling penguins.”

• Tim Burton’s new Alice in Wonderland
• Plan B
• Dare
• The Man Who Loved Yngve
• Zombies of Mass Destruction
• The Big Gay Musical
• A Single Man
• The Sorcerer’s Apprentice “starring” Nicholas Cage*
• Precious: Based on the Novel “Push” by Sapphire
• Milk

* nb: Nicholas Cage makes me feel nauseous every time he appears on screen. I have no idea why. I’m sure he is a fine and nuanced actor at the peak of his professional powers. But I simply cannot stand him one teensy little bit. And that makes me sad, because I’m not a hater.

An occasional feature brought to you by this rattling round inside my head during a bout of insomnia.

That is all. I thank you.

* i.e. zero to one