You know, Mr. Salk probably was just as neive and stupid as well meaning people like you. What I have learned in my short life here is that bad people exist. When bad people have powerful fear motivating resources then they tend to use it for evil, like the technology to make vaccines being developed to make weaponized viruses. Now immortality can't be weaponized right? This is how I know you are an idiot. There's a weaponized virus floating in our collective atmosphere and you are genius enough to come here and vote me down because you are afraid of God, death, and your own guilt and shame in the culpability I this mess? I see the suffering, I see how it's being used against our civilization to motivate us to produce these things for much more powerful dangerous people who currently enslave you and your children. The motivation and purpose and intent for this technology will lead to nothing good. This is coming from the center of our civilizations epistemological rupture. Wake up!