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Sad disconnect at Cosmic Variance blog---how not to discuss
Cosmic Variance blog is known for lively discussion but I just noticed a sad disconnect where the key point Lee Smolin was making just slipped by in a "yes it is---no it isn't" kind of way without any reasoned counterargument.
It is really crucial that the CNS hypothesis (cosmic natural selection) is TESTABLE, and in fact could be falsified at any moment by ongoing observation.
and that testability is not some future pie-in-sky promise, it has been ongoing since mid 1990s.
CNS predicts you will never find a neutron star with mass greater than 1.7 solar.
(it also predicts other stuff but that's enough to show falsifiability)
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this is a general astronomy thing that ties together neutron stars, black holes, and basic physical constants such as the cosmological constant, particle masses and soforth.
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anyway I found this exchange kind of depressing. Smolin explained why CNS was testable, and Bergman (a young string physicist) said "no it isnt" and he didnt give any reasons for that kind of rude contradiction!
and the discussion went on, and he still didn't give reasons. It was sad.
That was a February thread, and long dead, but maybe we can redress the balance, if only in spirit, by discussing CNS some.
Here is the Cosmic Variance sequence of comment:
http://cosmicvariance.com/2007/02/21/oos-and-bbs/#comment-205299
Cosmic Variance blog is known for lively discussion but I just noticed a sad disconnect where the key point Lee Smolin was making just slipped by in a "yes it is---no it isn't" kind of way without any reasoned counterargument.
It is really crucial that the CNS hypothesis (cosmic natural selection) is TESTABLE, and in fact could be falsified at any moment by ongoing observation.
and that testability is not some future pie-in-sky promise, it has been ongoing since mid 1990s.
CNS predicts you will never find a neutron star with mass greater than 1.7 solar.
(it also predicts other stuff but that's enough to show falsifiability)
================
this is a general astronomy thing that ties together neutron stars, black holes, and basic physical constants such as the cosmological constant, particle masses and soforth.
================
anyway I found this exchange kind of depressing. Smolin explained why CNS was testable, and Bergman (a young string physicist) said "no it isnt" and he didnt give any reasons for that kind of rude contradiction!
and the discussion went on, and he still didn't give reasons. It was sad.
That was a February thread, and long dead, but maybe we can redress the balance, if only in spirit, by discussing CNS some.
Here is the Cosmic Variance sequence of comment:
http://cosmicvariance.com/2007/02/21/oos-and-bbs/#comment-205299
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