Wednesday, September 06, 2023

You can’t put [the universe] in a box on a table and run controlled experiments on it

--- physicists Adam Frank and Marcelo Gleiser in The Story of Our Universe May Be Starting to Unravel, NY Times guest essay, 2 Sep 2023, via SN First Up, 6 Sep 2023

Cosmology is not like other sciences. It’s not like studying mice in a maze or watching chemicals boil in a beaker in a lab. The universe is everything there is; there’s only one and we can’t look at it from the outside. You can’t put it in a box on a table and run controlled experiments on it. Because it is all-encompassing, cosmology forces scientists to tackle questions about the very environment in which science operates: the nature of time, the nature of space, the nature of lawlike regularity, the role of the observers doing the observations.

The story behind the essay title: "But one of the Webb’s first major findings was exciting in an uncomfortable sense: It discovered the existence of fully formed galaxies far earlier than should have been possible according to the so-called standard model of cosmology."