Taking off from Jon's post in response to 4.4: some disorderly thoughts of my own on the role of technology in contemporary life and contemporary art.
I'm not familiar with McLuhan's account of "amputation" but I'd be more inclined to say that new technologies create attenuations or displacements as well as amplification of ability (and desire) rather than the kind of absolute loss that his metaphor seems to imply. We can, at least in many cases, still recover something of the older ways of doing things. "Old media" tend to stay with us, though they may seem to some to lose their "relevance."
I think that while the use of tools and artifacts is common to many animal species, homo sapiens has taken this to an extreme. This has both advantages and disadvantages; these are hopelessly entwined and we have to face both. Short of a global apocalypse (though that is certainly imaginable), we are caught up in technology and technological society. As Jon suggests, humor and absurdism are a big help.
I just came across an old essay, "On Transcribing and Superliteracy," by the Darwinian aesthetician Ellen Dissanayake, in which she offers a humorous reflection on her "day job" as a transcriptionist as a means of reflecting on the differences between oral and literate cultures and the ways hyperliteracy has distorted contemporary literary and language theory. Some of her language from the article also appears in her wonderful 1992 book Homo Aestheticus, which offers a "species-centric" view of art as a unique human adaption. I'm on the fence about the art as uniquely human (it depends, as I said earlier, on how one defines art--a tricky question for certain). I'd have to revisit her ideas at greater length but I think they are worth taking seriously in the light of questions being raised in this discussion. (As an evolutionary thinker, she is, of course, well-informed about the deep continuity between humans and other animals. But perhaps she is still too much a "humanist.")
Writing, painting, traditional musical instruments--these are all technologies too, with their associated gains and losses (though mostly gains, or so one would like to think). Concerning computers (briefly discussed by Dissanayake as writing tools, interestingly enough, from the perspective of 1990), I think they are a perfectly legitimate means for making art. Hopefully it's not a mere prejudice, based on my background as a painting student, nor sheer backwardness, to suggest that more traditional artistic media have a special role today in offering a counterweight to the effusions of our digital culture. If memory serves (I don't have the book on me), philosopher Paul Crowther concludes his chapter on digital art in his The Phenomenology of the Visual Arts by affirming the primal necessity of painting and other established artforms. These connect (and reconnect us) to our bodies and our senses in ways that images on a screen--even virtual reality immersion--cannot.