"I don’t know what you mean by physiological proof."
They have digital microscopes, that could show the public, physical evidence at the cellular level, to show us the claimed-benefits, or at least prove what they're saying is true, about the vaccine causing a re-coding of the human cells, we should be able to see it on microscope-recordings, they should be able to say;
"See, right there, it's doing 'such and such', just as we said it would, here's more confirmation in this other cell-group" they should be able to show us the similar pattern in say 10 or 12 different individuals of different backgrounds/ethnicities, and health-types, and say "Yea, without a doubt, what you're seeing in all of these slides are each a little different, but mostly the same reaction that we wanted to see"
If they wanted to be open and honest, they should be able to throw all of that into a presentation for 40-60 minutes and at the least, prove the vaccine does what it says mechanically to the cells' functions, aka physiologically proving their vaccine does what they claim it does.
Now, whether or not that is long term or if there are problems later that should be a 3-month, 6-month, 1 year, 1.5 year, 2 years, 2.5 years, and so on, until 10 years, at the least, for studying again, the vaccine's physiological "benefit" to the cells, like they claim it does.
If they can't, then they can't, but they could at least show us the slide recordings, show us, so we can see for ourselves.
Whether or not we trust they are showing us the honest slides and not tampering with it, could be explained or addressed later, but at the least, if you were an honest vaccine manufacturer, you'd prove your work, even school students have to prove more work than what is injected into them.