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Fine tuning

At Big Think: How the Multiverse could break the scientific method

Theoretical physicist Marcelo Gleiser raises the issue that the multiverse hypothesis suffers from the unscientific property of non-falsifiability. Embedded in his article is a solid acknowledgement of the fine-tuning of physical parameters for life to exist in our universe. Read More ›

Denton’s prior fitness argument: Everything seems to have come together to produce humans

But didn’t Freeman Dyson (1923–2020) say, “The more I examine the universe and the details of its architecture, the more evidence I find that the universe in some sense must have known we were coming.” The idea isn’t new; there’s just much more evidence for it. Read More ›

Rescuing the multiverse as a science concept… ?

Barnes on the multiverse: In the cycle of the scientific method, the multiverse is in an exploratory phase. We've got an idea that might explain a few things, if it was true. That makes it worthy of our attention, but it's not quite science yet. We need to find evidence that is more direct, more decisive. Read More ›

FOR REFERENCE: Globular Cluster M55 as illustrating apparent aging of our galaxy (& cosmos)

It seems helpful to illustrate cosmological scale apparent aging as stars depart main sequence: An idealised, Hertzsprung-Russell chart for Hydrogen-rich balls prone to become fusion furnaces is: Here is a comparative plot (for open clusters), constructing a “clock” by projected pattern as a cluster ages, in effect seeing what is left as a candle burns down: This can be taken as illustrative of how our cosmos shows entropy-associated aging on the grand scale. Further illustrative, here is a NASA-derived cosmological timeline model, integrated with fine tuning: Speaking of fine tuning, Barnes et al summarise: All of this ties to core thermodynamics: Food for thought. END

Steve Meyer on why a supposed multiverse is no answer to the extreme fine-tuning of our universe

Meyer on multiverse cosmologists: "The speculative cosmologies (such as inflationary cosmology and string theory) they propose for generating alternative universes invariably invoke mechanisms that themselves require fine-tuning, thus begging the question as to the origin of that prior fine-tuning." Read More ›

Fine tuning of the universe: “Who Ya Gonna Believe Me or Your Own Eyes?”

So Larry Krauss argues “cosmological fine-tuning does not provide evidence of intelligent design, but instead, ‘the illusion of intelligent design.’” Isn’t that a misuse of the concept of illusion? Doesn’t it amount to saying, Who Ya Gonna Believe Me or Your Own Eyes? Read More ›

At Mind Matters News: Is this idea too crazy?: There was life on the early Moon?

To the extent that the universe appears fine-tuned for life to a dramatic degree, it’s at least reasonable to think it could have survived on, say, the Moon or Mars until conditions there became prohibitive. Read More ›

Deepening crisis in particle physics — Rob Sheldon responds

But when theoretical physicists start messing with reductionism, they are messing with the core assumptions of the meaningless universe. Many attempts are in progress to revalidate those assumptions, of course but... Read More ›

Astrophysicist: Quit calling our sun an “average star”

Adam Frank: That whole “average star” meme works great if you want to make it seem like we are nothing special at all in the Universe. But from a stellar census point of view, it’s just not true. Read More ›

Researchers: Moons make planets habitable — but not all planets can have them

University of Rochester: The researchers found that rocky planets larger than six times the mass of Earth (6M) and icy planets larger than one Earth mass (1M) produce fully—rather than partially—vaporized disks, and these fully-vaporized disks are not capable of forming fractionally large moons. Read More ›