Realities

Realities

Red-tailed hawk • Photo by Patrice Bouchard on Unsplash

Originally published 18 July 2004

Was up Mount Bran­don yes­ter­day, Ire­land’s sec­ond high­est moun­tain, with my friend Mau­rice. A tem­per­a­ture inver­sion held the clouds close to the earth, with just the peaks ris­ing above. An island arch­i­pel­ago in a sea of white.

Image of a hiker in the mountains above the clouds

Here’s a pho­to. That sum­mit far off in the dis­tance on the left is Car­ran­tuo­hill, Ire­land’s high­est moun­tain, across Din­gle Bay.

Although the whole of Ker­ry seemed slathered in cream, a north wind curled wisps of cloud over the rim of the ridge. Every now and then my friend, walk­ing ahead, dis­ap­peared as if in a puff of smoke. It was one of those times when the ele­ments con­spire to cre­ate a scene of unex­pect­ed grandeur.

I almost said, “a scene of spine-tin­gling spe­cial effects.” As if art could equal nature.

A cou­ple of months ago I was walk­ing across the Stone­hill Col­lege cam­pus to get a cof­fee at the cafe. Perched on a bird feed­er next to the path a red-tailed hawk was devour­ing a squirrel.

A red-tail is a big bird, eagle-sized, and he took no notice of me as I stood on the pave­ment watch­ing. Bit by bit he pulled the squir­rel apart and gulped it down. He was only twen­ty feet away, but I watched with binoc­u­lars: every whisker of the squir­rel, every drop of blood on the hawk’s beak.

An ear­ly-ris­ing stu­dent came along. She stopped and gaped. “What’s that?” she asked. “Is it real?”

Have a look,” I said, and hand­ed her the glasses.

She peered. “Wow! she gasped. “It’s just like the Dis­cov­ery Channel.”

We live in a world of vir­tu­al real­i­ties. Images on a screen. Music from a machine in our pock­et, plugs in our ears. I walked into a home recent­ly and a soc­cer game was on the big-screen TV. So life­like were the graph­ics that a few moments passed before I real­ized I was watch­ing a video game being played by a child curled up on the couch.

Mind you, I’m not immune to the attrac­tions of the vir­tu­al. God knows I spend enough time with my eyes glued to the screen of my lap­top. I would­n’t be writ­ing these essays from where I am — a vil­lage in the west of Ire­land — if it weren’t for the vir­tu­al library that is the internet.

Just look at those won­der­ful pic­tures that have been down­linked from Sat­urn at 2 kilo­bytes per sec­ond over the deep space net­work at Can­ber­ra, Aus­tralia: the giant ringed plan­et dis­as­sem­bled into bits, flashed across space as a stream of ones and zeros, and reassem­bled on our com­put­er screens.

Same for the inner world of genes and pro­teins that I see dig­i­tal­ly ren­dered each week in the on-line jour­nals Sci­ence and Nature, an invis­i­ble uni­verse made vis­i­ble by elec­tron­ics. Even our thoughts are giv­en dig­i­tal form as flash­es of col­or on brain scans.

As elec­tron­ic cir­cuits get small­er, faster and cheap­er, and as dig­i­tal mem­o­ry becomes ever more capa­cious, vir­tu­al real­i­ty and real­i­ty converge.

The doing of sci­ence becomes ever more depen­dent upon com­put­ers. Con­verse­ly, the metaphor of the com­put­er begins to change the way we think about the world. Some sci­en­tists would go so far as to say that the entire uni­verse is a flick­er­ing of sub­atom­ic pix­els run­ning on a cos­mic com­put­er. Oth­ers want to make com­put­ers out of DNA, co-opt­ing the real in the name of the virtual.

I lis­ten to my lap­top, the hard dri­ve seduc­tive­ly hum­ming its Circe song. I have been sit­ting here all morning.

I look out the win­dow to where the moun­tain beck­ons. Those banks of cloud curl­ing over dew-soaked ridges. The tip of Car­ran­tuo­hill loft­ing above the white sea like the leg­endary isle of Hy Brasil that drew Irish saints into the West­ern Ocean in boats of lath and skin.

Enough! Enough of the vir­tu­al. I’m off to the hill.

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