[extropy-chat] Where's the New Einstein?
Olga Bourlin
fauxever at sprynet.com
Tue Mar 1 05:39:48 UTC 2005
Is he going to be one of youse guys on this list?:
http://www.nytimes.com/2005/03/01/science/01eins.html?8hpib
March 1, 2005
The Next Einstein? Applicants Welcome
By DENNIS OVERBYE
e didn't look like much at first. He was too fat and his head was so big his
mother feared it was misshapen or damaged. He didn't speak until he was well
past 2, and even then with a strange echolalia that reinforced his parents'
fears. He threw a small bowling ball at his little sister and chased his
first violin teacher from the house by throwing a chair at her.
There was in short, no sign, other than the patience to build card houses 14
stories high, that little Albert Einstein would grow up to be "the new
Copernicus," proclaiming a new theory of nature, in which matter and energy
swapped faces, light beams bent, the stars danced and space and time were as
flexible and elastic as bubblegum. No clue to suggest that he would help
send humanity lurching down the road to the atomic age, with all its promise
and dread, with the stroke of his pen on a letter to President Franklin D.
Roosevelt in 1939, certainly no reason to suspect that his image would be on
T- shirts, coffee mugs, posters and dolls.
Einstein's modest beginnings are a perennial source of comfort to parents
who would like to hope, against the odds, that their little cutie can grow
up to be a world beater. But they haunt people like me who hanker for a
ringside seat for the Next Great Thing and wonder whether somewhere in the
big haystack of the world there could be a new Einstein, biding his or her
time running gels in a biology lab, writing video game software or wiring a
giant detector in the bowels of a particle accelerator while putting the
finishing touches on a revolution in our perception of reality.
"Einstein changed the way physicists thought about the universe in a way the
public could appreciate," said Dr. Michael Turner, a cosmologist from the
University of Chicago and the director of math and physical sciences at the
National Science Foundation.
Could it happen again? "Who or where is the next Einstein?"
No question is more likely to infuriate or simply leave a scientist
nonplussed. And nothing, of course, would be more distracting, daunting and
ultimately demoralizing than for some young researcher to be tagged "the new
Einstein," so don't expect to hear any names here.
"It's probably always a stupid question," said Dr. Lawrence Krauss, a
cosmologist at Case Western Reserve University, who nevertheless said he had
yet to read a profile of a young scientist that does not include, at some
level, some comparison to Einstein.
Dr. Stephen Hawking, the British cosmologist and best-selling author, who is
often so mentioned, has said that such comparisons have less to do with his
own achievements than the media's need for heroes.
A Rare Confluence
To ask the question whether there can be a new Einstein is to ask, as well,
about the role of the individual in modern science. Part of the confusion is
a disconnect between what constitutes public and scientific fame.
Einstein's iconic status resulted from a unique concurrence of scientific
genius, historical circumstance and personal charisma, historians and
scientists say, that is unlikely to be duplicated.
Dr. David Gross, who shared the Nobel Prize for Physics last year, said, "Of
course there is no next Einstein; one of the great things about meeting the
best and the brightest in physics is the realization that each is different
and special."
Physics, many scientists like Dr. Gross say, is simply too vast and
sprawling for one person to dominate the way Einstein did a century ago.
Technology is the unsung hero in scientific progress, they say, the
computers and chips that have made it possible to absorb and count every
photon from a distant quasar, or the miles of wire and tons of sensors
wrapping the collision points of speed-of-light subatomic particles. A
high-energy physics paper reporting the results from some accelerator
experiment can have 500 authors.
"Einstein solved problems that people weren't even asking or appreciating
were problems," said Dr. Edward Witten of the Institute for Advanced Study
in Princeton, N.J., Einstein's stomping grounds for the last 32 years of his
life. "It could be there are big questions nobody is asking, but there are
so many more people in physics it's less likely big questions could go
unasked."
But you never know.
"One thing about Einstein is he was a surprise," said Dr. Witten, chuckling.
"Who am I to say that somebody couldn't come along with a whole completely
new way of thinking?"
In fact, physicists admit, waxing romantic in spite of themselves, science
is full of vexing and fundamental questions, like the nature of the dark
energy that is pushing the universe apart, or the meaning of string theory,
the elegant but dense attempt to unify all the forces of nature by thinking
of elementary particles as wiggling strings.
"We can frame an Einsteinian question. As you know, asking the question is
the key," said Dr. Leon Lederman, a Nobelist and former director of the
Fermi National Accelerator Laboratory. He likes to think, he added, that it
will be solved by "a Brazilian kid in a dirt floor village."
Dr. Turner said he hoped and expected that there would continue to be
Einsteins. One way to measure their impact, he suggested, was by how long it
took society to digest their discoveries and move on.
By this metric, he said, Isaac Newton beats out Einstein as the greatest of
all time (or at least since science was invented). Newton's world lasted
more than 200 years before Einstein overthrew it.
"Einstein has lasted 100 years," he said. "The smart money says that
something is going to happen; general relativity won't last another 200
years."
Looking the Part
Would that make someone a candidate for a T-shirt, or an Einstein? It
depends on what you mean by "Einstein."
Do we mean the dark-haired young firebrand at the patent office, who yanked
the rug out from under Newton and 19th-century physics in 1905 when he
invented relativity, supplied a convincing proof for the existence of atoms
and shocked just about everyone by arguing that light could be composed of
particles as well as waves?
Is it the seer who gazed serenely out at the world in 1919 from beneath
headlines announcing that astronomers had measured the bending of light rays
from stars during an eclipse, confirming Einstein's general theory of
relativity, which described gravity as the warping of space-time geometry?
Einstein had spent 10 years racking his brain and borrowing the mathematical
talents of his friends trying to extend relativity to the realm of gravity.
When this "great adventure in thought," as the philosopher Alfred North
Whitehead called it, safely reached shore, Einstein caught a wave that
lifted him high above physics and science in general.
The world was exhausted morally, mentally and economically from the Great
War, which had shattered the pretensions of Enlightenment Europe. People
were ready for something new and Einstein gave them a whole new universe.
Moreover, the mark of this new universe - "lights all askew in the heavens,"
as this newspaper put it - was something everybody could understand. The
stars, the most ancient of embodiments of cosmic order, had moved.
With Whitehead as his publicist, Einstein was on the road to becoming the
Elvis of science, the frizzy-headed sage of Princeton, the world's most
famous Jew and humanity's atomic conscience.
It helped that he wore his fame lightly, with humor and a cute accent. "He
was a caricature of the scientist," said Dr. Krauss. "He looked right. He
sounded right."
When physicists are asked, what they often find distinctive about Einstein
are his high standards, an almost biological need to find order and logical
consistency in science and in nature, the ability to ferret out and question
the hidden assumptions underlying the mainstream consensus about reality.
Dr. Lee Smolin of the Perimeter Institute for Theoretical Physics in Ontario
describes it as moral quality. "He simply cared far more than most of his
colleagues that the laws of physics should explain everything in nature
coherently and consistently," he wrote last year in Discover.
It was that drive that led him to general relativity, regarded as his
greatest achievement. The other discoveries, in 1905, physicists and
historians say, would have been made whether Einstein did them or not. "They
were in the air," said Dr. Martin Rees, a cosmologist at Cambridge
University and Britain's astronomer royal.
The quest for general relativity, on the other hand, was the result of "pure
thought," Dr. Rees said.
Dr. Peter L. Galison, professor of the history of science and of physics at
Harvard, described Einstein as "somebody who had a transformative effect on
the world because of his relentless pursuit of what the right principles
should be."
Others said they were impressed that he never swerved, despite a tempestuous
personal and political life, from science as his main devotion. "He fixed
his concentration on important problems, he was unvarying in that," Dr.
Krauss said.
Another attraction of Einstein as an icon is his perceived irreverence, and
the legend of his origin as an outsider, working in the patent office while
he pursued the breakthroughs of 1905. (Not that he was necessarily humble
because of that; letters from his early years show him pestering well-known
scientists and spoiling for a fight so much that his girlfriend and future
wife, Mileva Maric, was always counseling him to keep a cool head.)
"Part of the appeal is that he comes from nowhere and turns things upside
down," Dr. Galison said. "That's the fantasy," he explained, saying that
science has always represented the possibility that someone without a
privileged background could intervene and triumph through sheer ability and
brainpower.
There is no lack of inventive, brilliant physicists today, but none of them
are T-shirt material, yet. In the cozy turn of the century, Dr. Galison
said, Einstein was able to be a philosopher as well as a physicist,
addressing deep questions like the meaning of simultaneity and often
starting his papers by posing some philosophical quandary.
But philosophy and physics have long since gone their separate ways. Physics
has become separated from the humanities. "Everything tells us science has
nothing to do with the ideas of ordinary life," Dr. Galison said. "Whether
that is good or bad, I don't know."
As a result no one has inherited Einstein's mantle as a natural philosopher,
said Dr. Galison.
We might have to settle for a kind of Einstein by committee. The string
theorists have donned the mantle of Einstein's quest for a unified theory of
all the forces of nature.
In the last half-century various manifestations of modern science have made
their way into popular culture, including chaos theory and the
representation of information in bits and bytes, as pioneered by Dr. Claude
Shannon, the Bell Labs engineer.
The discovery of the double helix of DNA, the hereditary molecule, which
laid the basis for the modern genetics, is probably the most charismatic
result of modern biology. But the world is not awash in action figures based
on James Watson and Francis Crick, the molecule's decoders.
Meanwhile Einstein's role of symbolizing the hope that you could understand
the universe has at least been partly filled by Dr. Hawking, whose books "A
Brief History of Time" and "The Universe in a Nutshell" have sold millions,
and who has even appeared on "Star Trek" and "The Simpsons."
"People know him," said Dr. Krauss, and his work on black holes has had a
significant impact on the study of gravity and the cosmos, but he has not
reinvented the universe.
The Next Big Idea
One reason nobody stands out is that physics has been kind of stuck for the
last half-century.
During that time, Dr. Witten said, physicists have made significant progress
toward a unified theory of nature, not by blazing new paths, but by
following established principles, like the concept of symmetry - first used
by Einstein in his relativity paper in 1905 - and extending them from
electromagnetism to the weak and strong nuclear forces.
"It was not necessary to invent quantum field theory," said Dr. Witten,
"just to improve it." That, he explains, is collective work.
But new ideas are surely needed.
Part of Einstein's legacy was an abyssal gap in the foundations of reality
as conceived by science. On one side of the divide was general relativity,
which describes stars and the universe itself. On the other side is quantum
mechanics, which describes the paradoxical behavior of subatomic particles
and forces.
In the former, nature is continuous and deterministic, cause follows effect;
in the latter nature is discrete, like sand grains on the beach, and subject
to statistical uncertainties.
Einstein to his dying day rejected quantum mechanics as ultimate truth,
saying in a letter to Max Born in 1924, "The theory yields much but it
hardly brings us closer to the Old One's secrets. I, in any case, am
convinced that he does not play dice."
Science will not have a real theory of the world until these two warring
notions are merged into a theory of quantum gravity, one that can explain
what happens when the matter in a star goes smoosh into a dense microscopic
dot at the center of a black hole, or when the universe appears out of
nothing in a big bang.
String theory is one, as yet unproven, attempt at such a quantum gravity
theory, and it has attracted an army of theorists and mathematicians.
But, Dr. Witten speculated, there could be an Einsteinian moment in another
direction. Quantum gravity presumes, he explained, that general relativity
breaks down at short distances. But what, he asked, if relativity also
needed correction at long distances as a way of explaining, for example, the
acceleration of the universe?
"Relativity field theory could be cracked at long distances," Dr. Witten
said, adding that he saw no evidence for it. But when Einstein came along,
there was no clear evidence that Newtonian physics was wrong, either. "I
would think that's an opportunity for an Einstein," he said.
Another Einsteinian opportunity, Dr. Witten later added in an e-mail
message, is the possibility that Einstein's old bugaboo quantum mechanics
needs correcting, saying that while he saw no need himself, it was a mystery
what quantum mechanics meant when applied to the universe as a whole.
Dr. Smolin of the Perimeter Institute said it should give physicists pause
that their leader and idol had rejected quantum mechanics, and yet what
everybody is trying to do now is to apply quantum mechanics to Einstein's
theory of gravity.
"What if he were right?" asked Dr. Smolin, who said he also worried that the
present organization of science, with its pressures for tenure and
publications, mitigates against the appearance of outsiders like Einstein,
who need to follow their own star for a few lonely years or decades.
But as Dr. Krauss said, it only takes one good idea to change our picture of
reality.
Dr. Smolin said, "When somebody has a correct idea, it doesn't take long to
have an impact."
"It's not about identifying the person who is about to be the new Einstein,"
he went on. "When there is someone who does something with the impact of
Einstein, we'll all know."
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