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encourage consumers to get DNA testing, potentially creating a novel research resource in the process

people can find each other by their alleles

most of the controversy centered on the medical applications. Customers can learn their genetic risk, compared with the general population, of myriad diseases, including Alzheimer's, diabetes, macular degeneration, and cancer. But many scientists and physicians say that it's unclear whether the average user can truly comprehend this information, and whether knowing her genetic risk will actually improve her health

allows people to compare their genome with those of family members, friends, and even strangers who have offered up their DNA data

The more they use the Web, the more they have to fight to stay focused on long pieces of writing.

He speculates on the answer: “What if I do all my reading on the web not so much because the way I read has changed, i.e. I’m just seeking convenience, but because the way I THINK has changed?”

I’ve lost the ability to do that

“power browse” horizontally through titles, contents pages and abstracts going for quick wins.

“We are how we read.

mere decoders of information

Reading, explains Wolf, is not an instinctive skill for human beings.

our writing equipment takes part in the forming of our thoughts.

The last thing these companies want is to encourage leisurely reading or slow, concentrated thought. It’s in their economic interest to drive us to distraction.

In Plato’s Phaedrus, Socrates bemoaned the development of writing. He feared that, as people came to rely on the written word as a substitute for the knowledge they used to carry inside their heads, they would, in the words of one of the dialogue’s characters, “cease to exercise their memory and become forgetful.” And because they would be able to “receive a quantity of information without proper instruction,” they would “be thought very knowledgeable when they are for the most part quite ignorant.” They would be “filled with the conceit of wisdom instead of real wisdom.”

The Italian humanist Hieronimo Squarciafico worried that the easy availability of books would lead to intellectual laziness, making men “less studious” and weakening their minds.

I come from a tradition of Western culture, in which the ideal (my ideal) was the complex, dense and “cathedral-like” structure of the highly educated and articulate personality—a man or woman who carried inside themselves a personally constructed and unique version of the entire heritage of the West. [But now] I see within us all (myself included) the replacement of complex inner density with a new kind of self—evolving under the pressure of information overload and the technology of the “instantly available.