Medical science is on the verge of a sea change initiated by the already ongoing research into the gut biome and the part microbiota play in human health whether good or bad.
Let me put it this way.
I am an engineer. Most of medicine is an art, not a science.
I have seen such claims literally all my life. I am north of 40, and have seen few pan out.
The older I get, the more I remember what my grandpa told me with the last sea change was in full swing.
There is a reason we did things the old way.
Going to Single Payer will likely abort that sea change if it is not ready to roll out and cheap enough that high prices are required through a patent period. Those high prices will not be paid by the government in a SS system and fantastic advances will be put back in the drawer. Get the government totally out of medicine and we will have some very rapid and paradigm changing new developments in practice.