By all accounts serial entrepreneur, inventor and futurist Ray Kurzweil is Google’s most famous employee, eclipsing even co-founders Larry Page and Sergei Brin. As an inventor he can lay claim to some impressive firsts, such as the flatbed scanner, optical character recognition and the music synthesizer. As a futurist, for which he is now more recognized in the public consciousness, he ponders longevity, immortality and the human brain.

From the Wall Street Journal:

Ray Kurzweil must encounter his share of interviewers whose first question is: What do you hope your obituary will say?

This is a trick question. Mr. Kurzweil famously hopes an obituary won’t be necessary. And in the event of his unexpected demise, he is widely reported to have signed a deal to have himself frozen so his intelligence can be revived when technology is equipped for the job.

Mr. Kurzweil is the closest thing to a Thomas Edison of our time, an inventor known for inventing. He first came to public attention in 1965, at age 17, appearing on Steve Allen’s TV show “I’ve Got a Secret” to demonstrate a homemade computer he built to compose original music in the style of the great masters.

In the five decades since, he has invented technologies that permeate our world. To give one example, the Web would hardly be the store of human intelligence it has become without the flatbed scanner and optical character recognition, allowing printed materials from the pre-digital age to be scanned and made searchable.

If you are a musician, Mr. Kurzweil’s fame is synonymous with his line of music synthesizers (now owned by Hyundai). As in: “We’re late for the gig. Don’t forget the Kurzweil.”

If you are blind, his Kurzweil Reader relieved one of your major disabilities—the inability to read printed information, especially sensitive private information, without having to rely on somebody else.

In January, he became an employee at Google. “It’s my first job,” he deadpans, adding after a pause, “for a company I didn’t start myself.”

There is another Kurzweil, though—the one who makes seemingly unbelievable, implausible predictions about a human transformation just around the corner. This is the Kurzweil who tells me, as we’re sitting in the unostentatious offices of Kurzweil Technologies in Wellesley Hills, Mass., that he thinks his chances are pretty good of living long enough to enjoy immortality. This is the Kurzweil who, with a bit of DNA and personal papers and photos, has made clear he intends to bring back in some fashion his dead father.

Mr. Kurzweil’s frank efforts to outwit death have earned him an exaggerated reputation for solemnity, even caused some to portray him as a humorless obsessive. This is wrong. Like the best comedians, especially the best Jewish comedians, he doesn’t tell you when to laugh. Of the pushback he receives from certain theologians who insist death is necessary and ennobling, he snarks, “Oh, death, that tragic thing? That’s really a good thing.”

“People say, ‘Oh, only the rich are going to have these technologies you speak of.’ And I say, ‘Yeah, like cellphones.’ “

To listen to Mr. Kurzweil or read his several books (the latest: “How to Create a Mind”) is to be flummoxed by a series of forecasts that hardly seem realizable in the next 40 years. But this is merely a flaw in my brain, he assures me. Humans are wired to expect “linear” change from their world. They have a hard time grasping the “accelerating, exponential” change that is the nature of information technology.

“A kid in Africa with a smartphone is walking around with a trillion dollars of computation circa 1970,” he says. Project that rate forward, and everything will change dramatically in the next few decades.

“I’m right on the cusp,” he adds. “I think some of us will make it through”—he means baby boomers, who can hope to experience practical immortality if they hang on for another 15 years.

By then, Mr. Kurzweil expects medical technology to be adding a year of life expectancy every year. We will start to outrun our own deaths. And then the wonders really begin. The little computers in our hands that now give us access to all the world’s information via the Web will become little computers in our brains giving us access to all the world’s information. Our world will become a world of near-infinite, virtual possibilities.

How will this work? Right now, says Mr. Kurzweil, our human brains consist of 300 million “pattern recognition” modules. “That’s a large number from one perspective, large enough for humans to invent language and art and science and technology. But it’s also very limiting. Maybe I’d like a billion for three seconds, or 10 billion, just the way I might need a million computers in the cloud for two seconds and can access them through Google.”

We will have vast new brainpower at our disposal; we’ll also have a vast new field in which to operate—virtual reality. “As you go out to the 2040s, now the bulk of our thinking is out in the cloud. The biological portion of our brain didn’t go away but the nonbiological portion will be much more powerful. And it will be uploaded automatically the way we back up everything now that’s digital.”

“When the hardware crashes,” he says of humanity’s current condition, “the software dies with it. We take that for granted as human beings.” But when most of our intelligence, experience and identity live in cyberspace, in some sense (vital words when thinking about Kurzweil predictions) we will become software and the hardware will be replaceable.

Read the entire article after the jump.