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That's what I think... The powerful wouldn't let this be public and also as an example of medicines to cure cancer, for example.

With all our technology and science, we still don't have a more "practical" way to prevent more people from dying from cancer.

Corporations do not care about helping out. They only look to see what they can get in revenues. This goes with the government. There are instances of it stepping in and taking patents away from companies to keep things off the market.

I remember how many inventions Nikola Tesla had at the time and the government confiscated a large part of his patents.

After his death, all work literally disappeared.