That's interesting, I was not aware of that there was always antibodies to all envelope proteins. Do you have links to more information on the topic?

How does this work when some of the envelope proteins are common, ones that occur in other non-viral sources?

I'd recommend reading about the HIV virion as an example with multiple proteins and needing multiple detected antibodies for a positive diagnosis. It's a good virus to read about due to the immense amount of research put into it.

Where exactly are you seeing evidence that the presence of protein A means antibodies to protein B will not be developed?

Until it wanes, which you don’t know when it does, so you take a booster until you get a breakthrough case because you aren’t immunized, you got a biological shortcut.

What do you mean by this?

With mRNA some cells in your body are tricked into growing so they have some unique but supposedly harmless aspect of the virus, like the spikes. [0] The immune system encounters these cells, recognizes them as not right, terminates and communicates to the larger system to be on the lookout for the molecular markers it found. If traditional vaccine is a trial by fire, then mRNA is trial by flashlight. It simulates some aspects of the fire but not others.

Immunization by mRNA may be better, sufficient or worse than the traditional immunity from actual virus material. I don’t think anyone knows for sure yet but I do know enough big money is riding on mRNA that it may be made to look like the only right approach even if it is only one of several good approaches.

0. https://www.cdc.gov/coronavirus/2019-ncov/vaccines/different...

[1]https://www.science.org/content/article/having-sars-cov-2-on...

"In addition, individuals who were previously infected who received one dose of the Pfizer vaccine were even more protected from breakthrough infection than the naturally infected group. There were no deaths in any of the groups examined. Given that previously infected individuals may have had multiple infections prior to the study period, the overall applicability of the study to all populations needs more clarification. Lastly, these findings should not be taken as an endorsement that getting infected is a better overall option for protection than the highly effective vaccines that are available as only those who survived initial infection were eligible for analysis."

For comparison, Norway just lifted covid restrictions. Apparently they have access to a different science than US West coast authorities.