We still don't have a more precise value for "Big G" | Hacker News

A Hacker News discussion looks at how scientists communicate uncertainty and why confidence levels differ across working researchers.

Cosmology is a key example: direct experiments are limited, so major questions often rely on indirect measurements and models.

The thread highlights the gravitational constant, or “Big G,” as a famously hard-to-measure value that still resists precise agreement.

The broader point is the gap between scientific uncertainty and the public perception that physics should always have exact answers.