Cosmology Fine tuning Intelligent Design Multiverse

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.”

Cosmology Intelligent Design Physics

Rob Sheldon: Maybe black holes don’t really exist. Consider the possibilities.

Sheldon: “What I sense is that false premises and bad assumptions have been coloring the entire field of Black Holes (and Big Bangs and quasars ) for decades now. Perhaps we should stop patching the creaking model and consider a new one. ” News: “Some of us can’t help wondering if the sheer philosophical pizzazz of the black hole keeps it going in its present state. A glamorous theory is bound to have a long run.”

Cosmology Information Intelligent Design Physics

A new solution for Hawking’s black hole paradox? “Quantum hair”

Catchy, we gotta admit: In 1976, Hawking suggested that, as black holes evaporate, they destroy information about what had formed them. That idea goes against a fundamental law of quantum mechanics which states any process in physics can be mathematically reversed. In the 1960s, physicist John Archibald Wheeler, discussing black holes’ lack of observable features Read More…

Cosmology Intelligent Design Quantum mechanics

Why physicists adhere to quantum theory despite bafflement

At Symmetry Magazine: Quantum field theory is rife with something mathematicians can’t stand: unresolved infinities. In a 1977 essay, Nobel Laureate Steven Weinberg wrote that “[Quantum field theory’s] reputation among physicists suffered frequent fluctuations… at times dropping so low that quantum field theory came close to be[ing] abandoned altogether.” (But it was kept because it works. And what might that point to?)

Cosmology Intelligent Design Physics

Sabine Hossenfelder: Did the early universe really inflate rapidly?

Hossenfelder: In the popular science media, inflation is sometimes presented as if it was established fact. It isn’t. Its status is similar to that of particle dark matter. They are both unconfirmed hypotheses. But while most physicists agree that particle dark matter has yet to be empirically confirmed, opinions about inflation are extremely polarized.

Big Bang Cosmology Intelligent Design Physics

Sabine Hossenfelder asks: Will the Big Bang repeat?

Hossenfelder: I am not sure that CCC actually solves the problem it was supposed to solve. Remember we are trying to explain the past hypothesis. But a scientific explanation shouldn’t be more difficult than the thing you’re trying to explain. And CCC requires some assumptions, about the conformal invariance and the erebons, that at least to me don’t seem any better than the past hypothesis.