[fyrn-]

They were talking about the future. One day if mars has high energy requirements, from settlements of anything really, solar panels may not be enough. In such a future developing nuclear power infrastructure on Mars might be worthwhile. But you only looked one inch in front of your face, and dismissed their comment so that you got to play the practical sensible engineer. What makes sense in engineering is context dependent, don't be so quick to dismiss.

[dungdongdang]

one day, when mars has high energy requirements, it will still be easier to mine on earth and bring uranium to mars. there will never be a time when it is not. not sure what you are not getting here. unless you mean millions of years in the future, when humanity is dead, and mars is terraformed and as friendly an environment to build a mine as earth.

don't be so quick to make up stuff people never said.