What are some things we know are scientifically possible but don't have the technology for yet?

1. Color electronic ink
   — boobfar


2. Space elevator. Combined with asteroid mining.
   — frustratedpolarbear


3. Desalinization of ocean water to use as drinking water. We can do it on a small scale and we can do it very expensively on a large scale, but someday I hope we can provide something cost affordable, easy to maintain, and easy to build/install that third world countries can use to provide safe drinking water for their population from the ocean.
   — stylophonics






4. A printer that doesn't suck.
   — PM_ME_FIRM_TITTIES


5. Combining messenger and Facebook into a single app.
   — ChanangoRango


6. Fusion power plants
   — HHHHnasa






7. Regrowing teeth. I remember ready a study where some Indian scientists had some luck with it. It probably wouldn't ever make it to the USA though, since dentistry is sort of the final free-for-all section of healthcare and they vigorously defend their ability to charge obscene rates and remain outside of the realm of "healthcare" itself.
   — spiderlanewales


8. In this thread: people with wildly wrong ideas of “scientifically possible”.
   — RobertAPetersen