"you can reuse most of the nuclear waste"

Then why are we trying to engineer facilities that will out last the time our current civilization has been around ?

http://www.cbc.ca/radio/ideas/distant-future-warnings-the-challenges-of-communicating-with-eternity-1.4158805

" radium waste is less hazardous than nowadays alternatives. there are safe ways to store it."

https://mobile.nytimes.com/2011/03/18/world/asia/18spent.html?referer=

"renewable energy is great, but it takes decades to pay it off and it produces so little energy, depending on the area of course."

http://www.independent.co.uk/news/world/europe/germany-green-technology-record-power-generation-35-per-cent-renewables-solar-wind-turbines-a7820156.html

When speaking of costs there is nothing more expensive than the highly subsidized nuclear power industry.

https://www.ucsusa.org/nuclear-power/cost-nuclear-power

Why is it many people think science will one day make nuclear energy and all of its externalities manageable yet have little to no hope that science can lead us to a green energy utopia?