In short, before investing read the prospectus very carefully and don’t put up money that you cannot afford to part with.
You are clearly educated in this field. Is it conventional wisdom that this is simply not possible or is it just that many have tried and failed (with many “investment” scams”) in the past?
The history of science is if something is theoretically possible it is more probable than not that eventually the problem will be solved.
I have been hearing about breakthroughs that would change everything for decades in this field so skepticism is justified. However, I still have hope that one day there will be the person (or computer AI) who thinks outside of the box and solves a riddle that will change everything.