Thursday, March 25, 2021

Virtual Delights


"Paul uncovered his eyes, and looked around the room. Away from a few dazzling patches of direct sunshine, everything glowed softly in the diffuse light: the matte white brick walls, the imitation (imitation) mahogany furniture; even the posters — Bosch, Dali, Ernst, and Giger — looked harmless, domesticated. Wherever he turned his gaze (if nowhere else), the simulation was utterly convincing; the spotlight of his attention made it so. Hypothetical light rays were being traced backwards from individual rod and cone cells on his simulated retinas, and projected out into the virtual environment to determine exactly what needed to be computed: a lot of detail near the centre of his vision, much less towards the periphery. Objects out of sight didn’t “vanish” entirely, if they influenced the ambient light, but Paul knew that the calculations would rarely be pursued beyond the crudest first-order approximations: Bosch’s Garden of Earthly Delights reduced to an average reflectance value, a single grey rectangle — because once his back was turned, any more detail would have been wasted. Everything in the room was as finely resolved, at any given moment, as it needed to be to fool him — no more, no less.
...
Paul closed his eyes and turned his face to the sun. In spite of everything, it was hard not to take solace from the warmth flooding onto his skin. He stretched the muscles in his arms, his shoulders, his back -- and it felt like he was reaching out from the "self" in his virtual skull to all his mathematical flesh, imprinting the nebulous data with meaning; binding it all together, staking some kind of claim.
...
Existence was beginning to seduce him. He let himself surrender for a moment to a visceral sense of identity which drowned out all his pale mental images of optical processors, all his abstract reflections on the software's approximations and short-cuts. This body didn't want to evaporate. This body didn't want to bale out. It didn't much care that there was another - "more real" - version of itself elsewhere. It wanted to retain its wholeness. It wanted to endure."

- Greg Egan (1961 - )
Permutation City

Tuesday, March 23, 2021

An Immense Landscape


 "I picture the vast realm
of the sciences as an
immense landscape scattered
with patches of dark and light.
The goal towards which
we must work is either to
extend the boundaries of
the patches of light, or
to increase their number.
One of these tasks falls
to the creative genius;
the other requires a
sort of sagacity
combined with
perfectionism."

- Denis Diderot (1713 - 1784)
Thoughts on the Interpretation of
Nature and Other Philosophical Works

Monday, March 22, 2021

Stirrings of the Soul


"The sea refreshes our imagination because it does not make us think of human life; yet it rejoices the soul, because, like the soul, it is an infinite and impotent striving, a strength that is ceaselessly broken by falls, an eternal and exquisite lament. The sea thus enchants us like music, which, unlike language, never bears the traces of things, never tells us anything about human beings, but imitates the stirrings of the soul. Sweeping up with the waves of those movements, plunging back with them, the heart thus forgets its own failures and finds solace in an intimate harmony between its own sadness and the sea’s sadness, which merges the sea’s destiny with the destinies of all things."

- Marcel Proust (1871 - 1922)

Sunday, March 21, 2021

Middle Ground


"We now know that complexity arises in a middle ground—often at the order–disorder border. Natural systems that evolve with and learn from interaction with their immediate environment exhibit both structural order and dynamical chaos. Order is the foundation of communication between elements at any level of organization, whether that refers to a population of neurons, bees or humans. For an organism order is the distillation of regularities abstracted from observations. An organism’s very form is a functional manifestation of its ancestor’s evolutionary and its own developmental memories.

A completely ordered universe, however, would be dead. Chaos is necessary for life. Behavioural diversity, to take an example, is fundamental to an organism’s survival. No organism can model the environment in its entirety. Approximation becomes essential to any system with finite resources. Chaos, as we now understand it, is the dynamical mechanism by which nature develops constrained and useful randomness. From it follow diversity and the ability to anticipate the uncertain future. 

There is a tendency, whose laws we are beginning to comprehend, for natural systems to balance order and chaos, to move to the interface between predictability and uncertainty. The result is increased structural complexity. This often appears as a change in a system’s intrinsic computational capability. The present state of evolutionary progress indicates that one needs to go even further and postulate a force that drives in time towards successively more sophisticated and qualitatively different intrinsic computation. We can look back to times in which there were no systems that attempted to model themselves, as we do now. This is certainly one of the outstanding puzzles: how can lifeless and disorganized matter exhibit such a drive? The question goes to the heart of many disciplines, ranging from philosophy and cognitive science to evolutionary and developmental biology and particle astrophysics. The dynamics of chaos, the appearance of pattern and organization, and the complexity quantified by computation will be inseparable components in its resolution."

- James P. Crutchfield (1955 - )
Between order and chaos

Saturday, March 20, 2021

Imagination


"We know,
but cannot grasp,
that above and below,
beyond the limits of
perception or imagination,
thousands of millions of
simultaneous transformations
are at work,
interlinked like
a musical score by
mathematical counterpoint
...a symphony
...but we lack the
ears to hear it."

- Stanislaw Lem (1921 - 2006)

Friday, March 19, 2021

Plural Realities


"Maybe each human being lives in a unique world, a private world different from those inhabited and experienced by all other humans. . . If reality differs from person to person, can we speak of reality singular, or shouldn't we really be talking about plural realities? And if there are plural realities, are some more true (more real) than others? What about the world of a schizophrenic? Maybe it's as real as our world. Maybe we cannot say that we are in touch with reality and he is not, but should instead say, His reality is so different from ours that he can't explain his to us, and we can't explain ours to him. The problem, then, is that if subjective worlds are experienced too differently, there occurs a breakdown in communication ... and there is the real illness."

- Philip K. Dick (1928 - 1982)

Wednesday, March 17, 2021

Subliminal Knowledge


 "Can we perceive those
inorganic beings,
don Juan?" I asked.
"We certainly can," he replied.
"Sorcerers do it at will.
Average people do it,
but they don't realize that
they're doing it because
they are not conscious of the
existence of a twin world.
When they think of a twin world,
they enter into all kinds
of mental masturbation,
but it has never occurred
to them that their fantasies
have their origin in a
subliminal knowledge that
all of us have:
that we are not alone."

- Carlos Castaneda (1925 - 1998)
The Active Side of Infinity