content: Well there's been a lot of devolpments in the LIFTR systems.  Quite a few countries have been investing in the research and development of liquid thorium reactors.  While true, they were first discovered decades ago and basically shelved since they don't produce that sweet weapons grade plutonium. Technology has made a lot of advancements since then. And now people are taking a second more serious look at it.  I believe 10 years is a very conservative estimate. It's a step in the right direction. The benefits far out weighs any downsides. The main issue sadly is funding. It's what killed the concept initially and has plagued it ever since. It would be insanely expensive to change the current uranium reactors to run on this new fuel. It's pretty depressing really as they produce a lot less dangerous waste and have a higher safety rating in an event of failure. The technology is far from perfected. But I'm really looking forward to the advancements to come.