He doesn’t give any numbers there. I may well be completely out to lunch, but that source doesn’t modify my opinion.

Here's the results of the first large randomized clinical trial - the gold standard in medicine. The study involved over 80,000 participants in Nordic countries.

"colonoscopy reduced cancer incidence but not death"

https://www.statnews.com/2022/10/09/in-gold-standard-trial-c...