Showing posts with label Quantum Physics. Show all posts
Showing posts with label Quantum Physics. Show all posts
, ,

String Theory of Character

Tuesday, February 2, 2010 1 comments

I know, you've been breathlessly waiting for the next physics inspired theoretical post, wading impatiently through all these Flux updates and Homing Project riffs. Well, the wait is over.

At the Black Playwrights Convening, in the surrounding conversation on Twitter at #newplay, and in recent posts from RVC Bard, Halcyon Theatre, and Parabasis, there has been a fascinating discussion about racial/cultural identity in theatre. Questions about what makes a black play black, about why an Arab actor must play an Arab role, whether casting should be color-blind, inclusive, or integrated, what role race plays in a production where race isn't specified, and much more are being hashed out eloquently.

This connects to me previous posts about the importance of the diversity of audience perspective in creating great theatre, and how that importance demands plays that juxtapose characters of diverse and contradictory perspectives on stage, as well.

I've been thinking of string theory's multi-dimensional model as a framework for thinking about diversity of perception. The extremely short version is that string theory posits a limit to the smallness of matter and energy, an irreducible unit that makes up the known universe. These are strings, incredibly small vibrating units that depending on how they vibrate, manifest all the widely different particles we know.

But of course you can't have a limitless number of possible vibrations, or you'd have a limitless number of particles, which our universe clearly does not have. And as it turns out, what defines the possible vibrations are the number and shape of dimensions.

For string theory to be right, there may be as many as 10 or 11 (or in some versions, 26!) dimensions, 3 of which are the macro-scale we're familiar with, 6-7 which are incredibly small, and that old mystery time makes 10 or11.

Depending on the shape of these incredibly small dimensions, these vibrating strings will create a universe like ours, or a universe with completely different laws of physics. The possible shapes of these dimensions are called Calabi-Yau spaces, and they determine how a string will vibrate in response to its surroundings.

Here's the important part: change the number or shape of the dimensions, you change the range of notes for a string, and thereby changes the rules of what's possible.

Change string for identity and dimensions for experience, and you have the rules that govern character.

The experiences with which we traditionally define diversity - age, race, culture, gender, sexuality, class, geography, religion, aesthetics, health, politics, and so on - all of these are dimensions into which the character's string can vibrate. And as certain characters share certain experiences, we may be able to describe a shape to each dimension of diversity, a recognizable common ground, even as we acknowledge that with each added dimension, the possible range of notes multiplies into an absolute uniqueness.

It is our job as artists to strive for this absolute uniqueness in creating character, especially in a world that for purposes of commerce and control pushes identity into a single dimension.

As it is for a single character, so it is for a single play: the capacity for meaning to vibrate through many different dimensions is part of what makes something great; we've all felt the disappointment of the single note play.

As it is for the play, so it for an audience; and I believe that great art can tear a fabric in the dimension of human beings and actually create new space for the spirit to vibrate; it can literally expand our capacity for life.

And as it for an audience, so it is for a culture.

So while I recognize and respect the need to talk about the rough dimensions of diversity; it is the coming together of a diverse and unique range of notes in character, person, play, and culture that interest me most; and where I feel our work as artists lies.

From dizzyingly small to lofty large, this post: not to worry, I'll return to our middle-world soon. Read the full story

, , , , , , ,

Quantum Darwinism

Thursday, December 17, 2009 3 comments

In this blog post we're going to fly from quantum mechanics to Darwin to theatre as quickly as possible, using only links and the single engine plane of my mind, so hold on. Ready?

One of essential differences between classical and quantum physics is probability. At the incredibly small Planck level, particles are neither here nor there, but a probability wave of both, a superposition of states. When observed, this wavefunction collapses into the familiar one location/state of classical physics (perhaps you've heard of our hapless feline friend, Schrodinger's cat). But the probability wave is real, and the physics that surround it incredibly accurate and exceedingly strange, giving rise to quantum entanglement and theories of parallel worlds.

The process of wavefunction collapse, and the obscuring of the bizarre quantum world, happens through a process called decoherence, which I talked about in theatre terms here. The actual process of decoherence remains uncertain. But in this process lies the answer of how our observable classical here-not-there cause-and-effect lovely world emerges from the quantum weirdness.

Physicist Wojciech Zurek came up with a theory based in an unlikely source: Darwin's theory of evolution. The probability wave of the quantum world insists that a particle is both here and there until it is observed; Zurek believes that observation is a kind of selection, whereby the particles that interact with the probability wave select the location/state that is most useful to them, aka, the fittest; and then deliver the information of that state into the world; and though other particles may interact with the wave in a different location, they are overwhelmed by the process of selection that says this particle is most fit here, not there.

Two beautiful things about this idea: the first is that the probabilistic nature of the quantum world does not collapse, as if the superposition of states was some foreign magical universe; but rather we only see the fittest version, based on a process of selection below the Planck level. The second is that if correct, the framework that underpins all of life's astonishing diversity is theoretically connected to the way the universe moves from possibility into being.

Pretty enough, but what on earth does this have to do with theatre?

Recent posts have wrestled with my fear that Presence, the essential difference of theatre to other narrative communal arts, isn't an essential enough difference to make up for its shortcomings. But here, with quantum Darwinism as a model, we have a possible conceptual framework for why the live audience/actor experience matters.

In theatre, the actor is the probability wave, and the audience is the force that pressures each evolving moment into the fittest choice. No matter what a rehearsal process has been, a play will inevitably move towards what an audience wants; as many a despairing director returning to a long run discovers. An actor makes a choice, and if enough audience members connect viscerally with that choice, a current runs from house to stage and changes the way that actor plays; they hold longer for a laugh, or go further with a big choice, emboldened by that current of yes.

In this feedback loop, an audience is shaping the performance in a way that is fundamentally Darwinian; choices that fall flat, arcs that don't work, will quickly find extinction as the play evolves under the selective pressures of the audience. In The Empty Space, Peter Brook bemoans a production that played with beautiful detail in one country, only to becomes coarse and simplistic in another; but really, the production was doing exactly what a play should do - evolve to meet the present moment.

When we say a great actor has Presence, what do we mean? What do we mean when we say In The Moment?

I think we mean that a great actor's performance is like that probability wave of quantum mechanics: it is both here and there, a superposition of possible states; until, acted upon by the pressures of the audience's perception, that possibility crystalizes into a choice; and if that actor is very good, we keenly feel the the current of that feedback running through each moment we make together.

So in this way, theatre is more than the observation of a human moment; it is the practice of shaping it. In this framework, the audience is participatory in more than just passive terms; they are the essential pressure which gives the play life.

And in this way, theatre is linked not only to the evolution of life; but to each present moment crystalizing out of quantum possibility into the only world we know.

A play is possibility, then the pressure of perception making the present, then the past. Read the full story