Because the PCR test is flawed, it reports many, many false positives...possibly 50%
Wow, that's a heck of a difference from the ONS Data
the data suggest that the false-positive rate is very low, under 0.005%. We do not know the sensitivity (true positive rate) of the swab test. However, other studies suggest that sensitivity may be somewhere between 85% and 98%.
On what dataset are you basing your 50% false positive estimate? Your article is a very thorough rundown of the many possible weaknesses of the testing approach but doesn't appear to have any analysis of actual test results to demonstrate that your concerns are actually valid in real-world conditions.
