Emily: This is incredible!!! Oh my god!!! You made all this!?
Dee: Yeah!
Emily: Oh!! It's beautiful! You're amazing! Dee!! How far could we go, in a year?
Dee: All over the solar system.
Emily: What? To all the planets?
Dee: And more, probably! The total travel time is about three months.
Emily: How!?
Dee: I'll be pushing; that solves all the hard problems.
Emily: You can take us that fast!?
Dee: Easy! I could take us faster, probably; but I thought a constant rate of acceleration to match gravity would be fast enough, and keep you healthier.
Emily: What I wouldn't give to know the mechanism of your energy!
Dee: Hah, I know right? I do get tired and have to swap out with myself; but it's easier if I double up. I've been practising on asteroids and stuff.
----
Alt text: rocket science is easy when you don't have to think about fuel at all, or exit/reentry of the atmosphere very much!