I Dream Awake

The Meaning Of Change

Posted on March 12th, 2008 in Books, Contemplation, Math, Time by kende || No Comment

As with so many other fundamental concepts, there is no saying what change is, the formula or form of words change is defined either with a knowing shrug or some verbal flourish patently the same as the concept under analysis. Change is growth. But growth is transformation. And transformations are changes. In talking about change, philosophers have made use of a vocabulary essentially no different from that engagingly presented by the ancient Greeks. There is the dusky river from which a dripping Heraclitus emerged, convinced improbably that he could never step into the same river twice. There are the paradoxes of Zeno, mad, bad, and dangerous to know. And there is not much else. But the analysis of change has been the mathematician’s stock in trade at least since the seventeenth century. It is change that is the concern of the calculus and the interpretation of change that brings a coordinate system to vibrant life; and if the mathematician cannot define change he cansort out its characteristic forms, the ways in which it appears in this, our crowded world.

We all of us live within hearing of the muted or monstrous sounds of a great clock, now ticking faster, now slower, but inevitably and inexorably ticking, and it is by reference to the clock that we measure the terrible and depressing changes in our own bodies, stomach expanding, skin sagging, arches falling, the story inconveniently reflected in the morning mirror, where a suspiciously familiar impostor apparently holds court. Such somber talk has at least the instructive effect of suggesting that change in something—change in anything—takes place against an assumed background in which time itself is changing, sagging skin sagging with respect to the time then and the time now, although how it is that time might change without some other standard of time to measure that is another mystery of the sort which mathematics is strangely replete.

p. 61-62, A Tour of the Calculus

One Blinking Cursor Is All I Need

Posted on March 6th, 2008 in Contemplation by kende || No Comment

The singularity came a long time ago, with the beginning of human existence. “We are the ones we have been waiting for,” no more a new idea than wheresoever I go, there I am. So we cannot predict with certainty anything of which our understanding may be ever imperfect… What more is new? So we may be the prey of others yet more intelligent than ourselves, alien and as yet unfathomable they might be… When has it ever been otherwise? We may still create the new, still race towards the infinite, mapping the continuous, erasing and drawing anew the previously assumed limit and making known to ourselves whatever was before an unreachable god of our imaginations, fretfully living in the gaps of our experience. Let forever come, unpredictably. We will remain the equation of which death has no proof, for as long as yet one human heart leaps.

What is unlikely is life.

13 Ways of Looking At A Line

Posted on March 6th, 2008 in Contemplation, Family, Math by kende || No Comment

The metaphor of a cut has meaning, because the line is ordered by the placement of its points (as a highway is ordered by the placement of its cities and towns); but the English word “cut” fails to suggest the meaty decisiveness of the German geschnitten, the energetic suggestion of action undertaken, as if the line were actually being snipped by a pair of heavy shears.

p. 43 A Tour of the Calculus

The greatly large painting of my great grandfather standing in his rose garden with his snipping shears comes vibrantly to mind…