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The Biotech Century


Ring farewell to the century of physics, the one in which we split the atom and turned silicon into computing power. It's time to ring in the century of biotechnology. Just as the discovery of the electron in 1897 was a seminal event for the 20th century, the seeds for the 21st century were spawned in 1953, when James Watson blurted out to Francis Crick how four nucleic acids could pair to form the self-copying code of a DNA molecule. Now we're just a few years away from one of the most important breakthroughs of all time: deciphering the human genome, the 100,000 genes encoded by 3 billion chemical pairs in our DNA.

Before this century, medicine consisted mainly of amputation saws, morphine and crude remedies that were about as effective as bloodletting. The flu epidemic of 1918 killed as many people (more than 20 million) in just a few months as perished in four years of World War I. Since then, antibiotics and vaccines have allowed us to vanquish entire classes of diseases. As a result, life expectancy in the U.S. jumped from about 47 years at the beginning of the century to 76 now.

But 20th century medicine did little to increase the natural life-span of healthy humans. The next medical revolution will change that, because genetic engineering has the potential to conquer cancer, grow new blood vessels in the heart, block the growth of blood vessels in tumors, create new organs from stem cells and perhaps even reset the primeval genetic coding that causes cells to age.

Our children may be able (I hope, I fear) to choose their kids' traits: to select their gender and eye color; perhaps to tinker with their IQs, personalities and athletic abilities. They could clone themselves, or one of their kids, or a celebrity they admire, or maybe even us after we've died.

In the 5 million years since we hominids separated from apes, our DNA has evolved less than 2%. But in the next century we'll be able to alter our DNA radically, encoding our visions and vanities while concocting new life-forms. When Dr. Frankenstein made his monster, he wrestled with the moral issue of whether he should allow it to reproduce: "Had I the right, for my own benefit, to inflict the curse upon everlasting generations?" Will such questions require us to develop new moral philosophies?

Probably not. Instead, we'll reach again for a time-tested moral notion, one sometimes called the Golden Rule and which Immanuel Kant, the millennium's most meticulous moralist, gussied up into a categorical imperative: Do unto others as you would have them do unto you; treat each person as an individual rather than as a means to some end.

Under this moral precept we should recoil at human cloning, because it inevitably entails using humans as means to other humans' ends--valuing them as copies of others we loved or as collections of body parts, not as individuals in their own right. We should also draw a line, however fuzzy, that would permit using genetic engineering to cure diseases and disabilities (cystic fibrosis, muscular dystrophy) but not to change the personal attributes that make someone an individual (IQ, physical appearance, gender and sexuality).

The biotech age will also give us more reason to guard our personal privacy. Aldous Huxley, in Brave New World, got it wrong: rather than centralizing power in the hands of the state, DNA technology has empowered individuals and families. But the state will have an important role, making sure that no one, including insurance companies, can look at our genetic data without our permission or use it to discriminate against us.

Then we can get ready for the breakthrough that could come at the end of the next century and is comparable to mapping our genes: plotting the 10 billion or more neurons of our brain. With that information we might someday be able to create artificial intelligences that think and experience consciousness in ways that are indistinguishable from a human brain. Eventually we might be able to replicate our own minds in a machine, so that we could live on without the "wetware" of a biological brain and body. The 20th century's revolution in infotechnology will thereby merge with the 21st century's revolution in biotechnology.

But this is science fiction. Let's turn the page now and get back to real science.


March 22, 1999

Read more of our comprehensive Special Report at (pages open in a new browser window)

Light at the End of the Tunnel
The human genome will be fully decoded in a matter of years

Craig Venter
The man in a big hurry to map genes

Designer Babies
You can pick a child's sex, but what about brains and beauty?

Ian Wilmut on why Dolly was misunderstood

On the Horizon
Tissue factories; food as drugs; anti-aging

James D. Watson on why we can't stop now

Would you want to choose your child's gender?

This edition's table of contents | TIME Asia home



U.S. secretary of state says China should be 'tolerant'

Philippine government denies Estrada's claim to presidency

Faith, madness, magic mix at sacred Hindu festival

Land mine explosion kills 11 Sri Lankan soldiers

Japan claims StarLink found in U.S. corn sample

Thai party announces first coalition partner


COVER: President Joseph Estrada gives in to the chanting crowds on the streets of Manila and agrees to make room for his Vice President

THAILAND: Twin teenage warriors turn themselves in to Bangkok officials

CHINA: Despite official vilification, hip Chinese dig Lamaist culture

PHOTO ESSAY: Estrada Calls Snap Election

WEB-ONLY INTERVIEW: Jimmy Lai on feeling lucky -- and why he's committed to the island state


COVER: The DoCoMo generation - Japan's leading mobile phone company goes global

Bandwidth Boom: Racing to wire - how underseas cable systems may yet fall short

TAIWAN: Party intrigues add to Chen Shui-bian's woes

JAPAN: Japan's ruling party crushes a rebel at a cost

SINGAPORE: Singaporeans need to have more babies. But success breeds selfishness

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