When Is a Thought Completed?

October 26, 2009

You may have heard about Google Wave, the Next Big Thing in online collaborative tools, if the Internet giant has anything to say about it.  It’s an ambitious and somewhat complicated way to coordinate and record multimedia collaborations.  When Slate columnist and author Farhad Manjoo took Wave for a test drive, he was put off by the fact that others could see his individual keystrokes as he typed in it.  Unlike other text-based applications (like instant messaging), which don’t send anything until you hit Enter.

Few of us type perfect and final sentences every time.  Sometimes we hit the wrong key; sometimes we back up and change words.  If you’re IM-ing and type, “That guy is a nut case unusual,” your recipient will see only the post-editing version, but if you’re typing in Google Wave, other participants will see the whole thing as you type.

Manjoo felt like the application was allowing others to look into his head while he thought.  We picture ourselves having little editor-censors that allow us to think whatever we want, but get to approve the final, expressed version.  In fact, our processing of information is continuous and reiterative, such that the pronouncement of the contents of an information stream at any point as “final” is arbitrary and misleading.  The figure below plots different kinds of cognitive output by the amount of processing that typically goes into each.

Proc_continuumThe process (or more properly, one cycle of it) begins in thought, where we assemble fragments of ideas into a coherent expression.  Once we’ve chosen the initial words, our fingers start to type, although we’re still building the expression and could change our minds, which is what makes watching a Google Wave comment under construction feel like peering into the skull.  Speech is only a little less granular: e.g., there are nine letters in the word “objective” but only three phonemes.  Multiply the cognitive processing we put into an instant message several-fold and you have the editorial control we typically exercise over blog posts, which are longer and have more elements to coordinate.  As with IM, we don’t hit Enter and publish them until we’re satisfied with the whole thing.

The two rightmost examples go extra-cranial and pool our processing power with others’.  An email thread between a pair of correspondents trying to figure something out has the benefit of both repeated iterations and two different perspectives to refine its conclusion.  An even greater number of authors, and more deliberation and verification, are often (but not always) involved with the creation of a Wikipedia article

The output of cognitive processing is typically a representation of objective reality; a truth claim about that reality.  That’s mostly what we think, talk and write about.  On the surface, it might seem that the more time and effort we put into building that representation, and the more heads we can combine to gain the benefit of additional brainpower, the more likely we are to “get it right” – to end up with an expression that faithfully mirrors the objective fact it represents.

But it often doesn’t work out that way.  Additional processing might allow us to crunch more data and catch and correct some cognitive errors and biases, but it can reinforce and magnify others.  If we’re communicating with other people, our goal may not be to collectively discover what’s objectively true, but to manipulate belief.

Even when a thinker with a particularly keen intellect labors over and eventually wins acclaim for solving a problem, the last word may have yet to be writ.  Einstein, Freud and Wittgenstein all repudiated significant portions of their earlier work later in life. Which doesn’t necessarily mean they weren’t right the first time.

Our beliefs and communications hover around the objective truth, but there’s no necessary relationship between how much cognitive work we put into them and how veridical they are.  Additional processing may bring us closer to that truth, cause us to overshoot it, or allow us to steer around it.

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Reality Bubbles

October 12, 2009

We’ve been hearing the word “bubble” a lot in the past year, thanks to the global economic crisis.  The stock market has been prone to bubbles as long as it’s existed; the principle extends to other markets like real estate.  Bubbles happen when buyers overestimate the intrinsic value of whatever they’re buying.  Continuing the metaphor, the excess valuation is sometimes called froth.

Market bubbles are a classic (if not the classic) example of a disconnect between objective and subjective reality.  A commodity’s intrinsic value is its objective value.  Market prices are subjective – they represent the value people believe the commodity has.  The perceived value typically fluctuates around the intrinsic value, pulled either higher or lower by rumors, market buzz, and other belief trends that misrepresent objective facts.

Within a bubble, beliefs are king, and overrule the objective facts they (mis)represent. Suppose the intrinsic value of an ounce of silver is US$15 but a rumor drives the market price up to $30.  It seems trivial to observe that buyers of a fixed amount of silver will see their brokerage accounts drop by twice as much as if they had paid a price based on its intrinsic value, but this fact underscores the power that beliefs have to impose objectively real effects within an information community, even if the beliefs themselves are not objectively true.

But bubbles can, and often do, burst.  False beliefs about the value of a commodity, whether it’s silver, mortgage-backed securities, or something else, are eventually (though not inevitably) “outed,” resulting in a correction of the price to one closer to its intrinsic value.  Through this continuous and iterative process, objective reality keeps our beliefs from straying too far afield and reins them in when they do.

The term “reality bubble” has generalized beyond its original market-based meaning.  The principle really applies to any situation where a person or group of people succeed in sustaining (for a time) a belief inconsistent with objective facts.  The reality inside the bubble is what I call beta reality – beliefs are the “facts” of this reality, and their effects (the actions taken by people based upon them) are the equivalent of the effects of objective facts as enforced by the laws of physics in objective (alpha) reality, which is outside the bubble.

One popular example of a reality bubble is Apple’s Reality Distortion Field (RDF).  The term (borrowed from Star Trek) refers to Apple founder Steve Jobs’ rare ability to create, through charisma and persuasion, the belief that Apple product breakthroughs are more substantial than an objective comparison with competing products would support.  Apple has skillfully leveraged this perception into what numerous polls have proclaimed the world’s top brand.  Multiplied across a market, it’s a belief inflection that translates into billions of dollars of extra revenue.  That’s a hefty beta effect.  And this bubble is not likely to burst anytime soon.

Groupthink is another phenomenon that creates reality bubbles that can burst with disastrous results.  Small belief communities are vulnerable to social pressure to sacrifice cognitive diversity for the sake of group cohesiveness.  This impairment of the ability of the group to construct accurate representations of objective reality is widely acknowledged as largely to blame for the failed Bay of Pigs invasion, the explosion of the Challenger space shuttle, and the failure of General Motors executives to recognize shifts in car buyer preferences.

The Rule Not the Exception

Reality bubbles are talked about like they’re anomalies or exceptions.  On the contrary; the manifold nature of objective reality and the limitations of human cognition mean our mental representations of that world are rarely spot on.  They usually miss the mark in one direction or another, to one degree or another.  Their distance from their objective referents traces the outline of a reality bubble.  Our individual and shared beliefs anchor our beta realities until and unless the bubble bursts and the belief is corrected (see The Correction).

Reality bubbles are thus the rule, not the exception; they characterize the fuzzy accuracy of human information processing.  Each of the following is a snapshot of a reality bubble bursting.  In each case, a false belief and its effects reign for a period before being overruled by the objective world.

  • I learn from a local appraiser that the Ming vase that’s been collecting dust in my attic is a knock-off worth only $50, not $5,000 like the one I saw on Antiques Roadshow.  Too bad I already spend the money in anticipation of my windfall.
  • A group of music fans stoke each other’s anticipation as they drive to a concert, only to discover upon arriving that the headliner came down with strep throat and had to cancel the gig at the last minute.
  • Officials at the Dutch national museum learn that the moon rock that has thrilled many visitors over the decades it’s been on display is actually a piece of ordinary petrified wood.

We typically don’t know we’re in a reality bubble until it bursts.  That means that as long as we’re in one, our beliefs that are false in alpha (objective) reality are true in beta reality, and have all the (belief-based) effects of beliefs that are objectively true.

But some reality bubbles never burst.  You may never know if that autographed Babe Ruth baseball your dad left you was really signed by the Babe.

And you may not want to know.

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All Mental Representations Are Subjective

September 21, 2009

Each embeds the physical position, cognitive biases and other constraints of its creator.

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The Brain Is a Lossy Compressor

September 8, 2009

Our heads can’t hold everything, so we strive to keep the most important info.

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“Moon Rock” Is Actually Petrified Wood

August 28, 2009

If you don’t know it’s not a moon rock, it’s a moon rock to you.

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