Why do we keep hearing about scientific advancement but we never see it in real world?

Why do we keep hearing about scientific advancement but we never see it in real world?

I keep hearing about bionic eyes, teeth regrowth and genetic researches that will lead to longer life and cancer cure. But when i ask about these treatment they are never available. Is it all talk? Is it real or fake?

Why do we keep hearing about scientific advancement but we never see it in real world?
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