What scientific discoveries is in your opinion needed the most today?
"needed the most" can be anything from survival issues, progress or anything you consider the most important.
In my opinion its a new energy source and a cure for age. Energy source because pollution, waste and the like will make our planet uninhabitable soon if not fixed/stopped. And a cure to age because humans have way to short lifespan, if scientists want to discover new technology they need a way greater lifespan to do their research.
Your thoughts?