The path behind is dim and the path forward is shadowed

From Technopoly: The Surrender of Culture to Technology by Neil Postman, Chapter 1, page 3.

1: The Judgment of Thamus

You will find in Plato’s Phaedrus a story about Thamus, the king of a great city of Upper Egypt. For people such as ourselves, who are inclined (in Thoreau’s phrase) to be tools of our tools, few legends are more instructive than his. The story, as Socrates tells it to his friend Phaedrus, unfolds in the following way: Thamus once entertained the god Theuth, who was the inventor of many things, including number, calculation, geometry, astronomy, and writing. Theuth exhibited his inventions to King Thamus, claiming that they should be made widely known and available to Egyptians. Socrates continues: Thamus inquired into the use of each of them, and as Theuth went through them expressed approval or disapproval, according as he judged Theuth’s claims to be well or ill founded, It would take too long to go through all that Thamus is reported to have said for and against each of Theuth’s inventions. But when it came to writing, Theuth declared, “Here is an accomplishment, my lord the King, which will improve both the wisdom and the memory of the Egyptians. I have discovered a sure receipt for memory and wisdom.” To this, Thamus replied, “Theuth, my paragon of inventors, the discoverer of an art is not the best judge of the good or harm which will accrue to those who practice it. So it is in this; you, who are the father of writing, have out of fondness for your off-spring attributed to it quite the opposite of its real function. Those who acquire it will cease to exercise their memory and become forgetful; they will rely on writing to bring things to their remembrance by external signs instead of by their own internal resources. What you have discovered is a receipt for recollection, not for memory. And as for wisdom, your pupils will have the reputation for it without the reality: they will receive a quantity of information without proper instruction, and in consequence be thought very knowledgeable when they are for the most part quite ignorant. And because they are filled with the conceit of wisdom instead of real wisdom they will be a burden to society.”’

[snip]

Unforeseen consequences stand in the way of all those who think they see clearly the direction in which a new technology will take us. Not even those who invent a technology can be assumed to be reliable prophets, as Thamus warned. Gutenberg, for example, was by all accounts a devout Catholic who would have been horrified to hear that accursed heretic Luther describe printing as “God’s highest act of grace, whereby the business of the Gospel is driven forward.” Luther understood, as Gutenberg did not, that the mass-produced book, by placing the Word of God on every kitchen table, makes each Christian his own theologian—one might even say his own priest, or, better, from Luther’s point of view, his own pope. In the struggle between unity and diversity of religious belief, the press favored the latter, and we can assume that this possibility never occurred to Gutenberg.

Thamus understood well the limitations of inventors in grasping the social and psychological—that is, ideological— bias of their own inventions. We can imagine him addressing Gutenberg in the following way: “Gutenberg, my paragon of inventors, the discoverer of an art is not the best judge of the good or harm which will accrue to those who practice it. So it is in this; you, who are the father of printing, have out of fondness for your off-spring come to believe it will advance the cause of the Holy Roman See, whereas in fact it will sow discord among believers; it will damage the authenticity of your beloved Church and destroy its monopoly.”

We can imagine that Thamus would also have pointed out to Gutenberg, as he did to Theuth, that the new invention would create a vast population of readers who “will receive a quantity of information without proper instruction... [who will be] filled with the conceit of wisdom instead of real wisdom”; that reading, in other words, will compete with older forms of learning. This is yet another principle of technological change we may infer from the judgment of Thamus: new technologies compete with old ones—for time, for attention, for money, for prestige, but mostly for dominance of their worldview. This competition is implicit once we acknowledge that a medium contains an ideological bias. And it is a fierce competition, as only ideological competitions can be. It is not merely a matter of tool against tool—the alphabet attacking ideographic writing, the printing press attacking the illuminated manuscript, the photograph attacking the art of painting, television attacking the printed word. When media make war against each other, it is a case of world-views in collision.