[BDParrish]

I concur with #10.
The question amounts to asking, “Can mRNA can do what DNA does?” The answer is of course, “No.”
How long is the spike protein in me?
Is the spike protein by itself harmful?
These are different questions.

[DesertRhino]

Is the spike protein harmful?

There is a place called the Salk institute that says yes.

https://www.salk.edu/news-release/the-novel-coronavirus-spike-protein-plays-additional-key-role-in-illness/