[Barrin92]

>Cancer incidence is flat to slightly decreased since then

This is a nonsensical point because it can trivially both be true that cancer rates fall overall while CT scans cause additional cases of cancer. The comparison has to be, and that's what the original paper did, how many additional cases of cancer do you get from radiation in particular, that is to say cancer incidence could obviously be even lower all other things being equal.

[doesnotexist]

Ok sure but also the number of CT scans has been increasing exponentially (3 million CTs in 1980, 20 million in 1995, 60 million 2005[0] to 93 million in 2023[1]) so you'd need to find some opposing force that is decreasing the incidence of cancer cases exponentially per capita to keep the balance.

[0] https://pmc.ncbi.nlm.nih.gov/articles/PMC2672242/

[1] https://jamanetwork.com/journals/jamainternalmedicine/fullar...