The next step:

[mariness]

I know it will cost a fortune - several fortunes, to be specific. I know it is completely impractical and useless and from a purely pragmatic viewpoint utterly silly and worthless. I know it will take years.

I still want to go to Mars.

And I want to watch humans leave this solar system and find out about all of those trillion trillion trillion stars that look so close in the dark of the night.