Cosmology Intelligent Design Physics

Sabine Hossenfelder asks, Should Stephen Hawking have won the Nobel? Rob Sheldon weighs in

Rob Sheldon: Hawking did not get the Nobel, however, because he hung his hopes on the radiation emitted by BH–the so-called “Hawking radiation”. And it was never observed. Sabine tries to explain why. But one argument that Sabine doesn’t make, is that Hawking radiation may never have been observed because BH are themselves never observed.

Biology Genetics Intelligent Design Physics

Rob Sheldon: Biologists’ use of the term “half-life” shows just how tenuous many of their propositions really are

Recently, our physics color commentator Rob Sheldon took issue with the use of the term “half-life” to describe the survival of DNA in fossils. He says the term has a specific meaning with respect to radioactive decay that just does not apply to other events in nature. In the biology paper at issue, with “half-life” Read More…

Biology Evolution Intelligent Design Physics

Does DNA really have a “half life”? Physicist Rob Sheldon is skeptical

Sheldon: “As a physicist, I would like to point out that biologists are misusing the word “half-life”. DNA does NOT have a half-life of 521 years. Radioisotopes have a half-life, because the nucleus is unstable to natural decay through the weak force (for isotopes of interest).” He goes on to say that the weak force of the universe “is unaffected by temperature, pressure, time, or chemicals.” Not so for DNA.

Cosmology Intelligent Design Physics

Sabine Hossenfelder reassures us that Schrodinger’s cat is still not dead

Hossenfelder: It’s no secret that I myself am signed up to superdeterminism, which means that the measurement outcome is partly determined by the measurement settings. In this case, the cat may start out in a superposition, but by the time you measure it, it has reached the state which you actually observe. So, there is no sudden collapse in superdeterminism, it’s a smooth, deterministic, and local process.

Fine tuning Intelligent Design Multiverse Physics theism

At The Conversation: Can the laws of physics disprove God?

This seems to be a rather light piece intellectually but it gives some sense of what the wine bar would be saying about God and science if COVID-19 crazy hadn’t put it out of business: “But God isn’t a valid scientific explanation. The theory of the multiverse, instead, solves the mystery because it allows different universes to have different physical laws. So it’s not surprising that we should happen to see ourselves in one of the few universes that could support life. Of course, you can’t disprove the idea that a God may have created the multiverse.”

Artificial Intelligence Cosmology Intelligent Design Philosophy Physics

Sabine Hossenfelder explains why she thinks that the computer sim universe is pseudoscience

Hossenfelder: You can approximate the laws that we know with a computer simulation – we do this all the time – but if that was how nature actually worked, we could see the difference. Indeed, physicists have looked for signs that natural laws really proceed step by step, like in a computer code, but their search has come up empty handed.