Humanity Vs Trial-Error

Unfortunately this video is a clear image of what has always happened throughout time, humanity is nothing more than a trial-error experiment. However, I think the real topic of discussion is the lack of disclosure to the patients receiving the vaccine as well as the option to opt out of the experiment or even get better treatment. What happened then, and what happens now, I think are clear examples of how experiments or studies have progressed throughout the years or well, at least the ones we are aware of, because theres no doubt in my head that experiments like those are still going on if not here, in other
countries.