I would like to disagree here about scientists. World has many researchers with many great ideas. The problem is "bureaucracy" and the fact, that people is greedy in general. Let me explain a little bit. For any new thing, like some cure, car technology, new energy source, or whatever you can imagin it can be researched, there are two areas, where it get slowed down. First are papers. For everything, you need tons of papers, way too many offices you need to visits, too many approvals you have to have. Annd this takes time, because politicians or office persons can only talk. Month, two three? Yes, we have it "in discussion". You are saying that you are ready? Haha, we are not, so back off! ... The next thing is money. Todays rich people are rich because they work well with some "technology", lets put it that way. Anything new, what helps people gets them "into the danger", that people will not want their services. One example for all, Few years ago, there was something about energy source in Australia, the goverment blocked research and building of solar powerplants to preserve coal digging. They do not care what this is bad, helps noone, and will destroy our planet sooner. Why? Because they have money from it now and when they die ... well ... who cares? And that is so sad ...