Archive for September, 2020

How the Many-Worlds Revivalism of Sean Carroll splits the World of Physics

Sunday, September 27th, 2020

It is sad to see a competent physicist and capable writer spouting meaningless nonsense in order to advance his position in a “public relations race” of his own invention.

There is no difference of opinion among physicists as to what quantum mechanics predicts, and although Sean Carroll has done, and is doing, good work on exploring ways in which a geometry of spacetime might arise as a mathematical consequence from a suitable kind of quantum theory, this does not give any reality to the notion of the universe actually “splitting”. No competent modern physicist considers “collapse of the wave packet” as anything more than a model for approximating what appears to us to be happening when an isolated experimental system starts to interact with the external universe which includes us as a part –  and (so) about which we do not have enough information to identify a pure state.

Source: How the Many-Worlds theory of Hugh Everett split the Universe | Aeon Essays

What’s the Problem with Plastic?

Saturday, September 12th, 2020

"The industry sold the public on an idea it knew wouldn't work — all while making billions of dollars selling the world new plastic."

Posted by Connie Hubbs on Saturday, September 12, 2020

With regard to plastics, I doubt that the promise of recycling significantly increased the market for petroleum-based materials. But even without recycling, separation of refuse streams is a good idea as different materials lend themselves to different methods of disposal. And the price of any product should include a fee paid by the producer to the government to cover the cost of appropriate disposal.

P.S. See also this

Trump Isn’t Afraid of Stoking Fear – Noah Rothman, Commentary Magazine

Thursday, September 10th, 2020

The source of this article is what makes it most interesting.