Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A Critique of Shortsighted Anthropic Principles

10.01.2008
Irit Maor, Lawrence Krauss, and Glenn Starkman Physical Review Letters (forthcoming)

Many people marvel that we live in a universe that seems to be precisely tailored to suit the development of intelligent life. The observation is the basis for some forms of "Anthropic Principles" that strive to explain why the laws of physics take the form we observe, given the nearly countless other possibilities permitted by schools of thought such as string theory.

But a new paper from a group of physicists at Case Western Reserve University argues that any connection between the laws of physics and the existence of life is likely to be an illusion stemming from our shortsighted definition of intelligent life.

For the sake of their analysis, the authors define intelligent life as any organism capable of producing scientists who can observe the universe around them. They then consider three types of universes: those that don't lead to scientists, those that lead to scientists who are completely different from us, and those that lead to scientists who need the same physical laws to survive that we require.

According to the authors, the second type of universe - one populated by scientists entirely unlike us - is too often overlooked by those who turn to anthropic arguments. After all, for all we know life could be very common in many types of universes even if stars and the other familiar components of our universe don't exist.

At best, it seems that our existence may indicate that the laws of physics as we know them are in effect - leading to a sort of litmus test for our type of physics that goes "where scientists similar to us exist, the laws of physics must be like ours." On the other hand, it's possible that our existence proves nothing more than the fact that intelligent life and the physics in our universe are simply not mutually incompatible - a conclusion that the authors describe as "nice, but hardly surprising."

The paper implies that the anthropic claim that "we observe things the way they are because otherwise we wouldn't be here to see them" should take a back seat to the search for fundamental explanations for why our physical laws must be the ones we have.

James Riordon | American Physical Society
Further information:
http://www.aps.org

More articles from Physics and Astronomy:

nachricht From rocks in Colorado, evidence of a 'chaotic solar system'
23.02.2017 | University of Wisconsin-Madison

nachricht Prediction: More gas-giants will be found orbiting Sun-like stars
22.02.2017 | Carnegie Institution for Science

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Stingless bees have their nests protected by soldiers

24.02.2017 | Life Sciences

New risk factors for anxiety disorders

24.02.2017 | Life Sciences

MWC 2017: 5G Capital Berlin

24.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>