This paper made some strange claims

A very interesting study came out in September 2023: Duration of SARS-CoV-2 mRNA vaccine persistence and factors associated with cardiac involvement in recently vaccinated patients

This paper caused a bit of a stir when it first came out, because it showed mRNA vaccine in the heart tissues of recently vaccinated deceased patients:

Vaccine was detected in the myocardium in a subset of patients vaccinated within 30 days of death.

Now that was interesting by itself, but this paper also had some remarkably strange things hidden within its results.