Nuclear costs
There is a current example of the cost of nuclear power, decommisioning a nuclear plant takes nearly a decade and a lot of money. I don't know if this would apply to thorium reactors.
Nuclear power will probably be part of the energy sources in the future. It would be good to work on alternative technologies so that we do not depend on a narrow range of energy resources. It is also a good idea to improve conservation so that we can extend resources further than current usage rates.