Yes, the staged combustion methalox engines under development are interesting. Though there's value in keeping it simple too. Gas generator engines got us to t

Yes, the staged combustion methalox engines under development are interesting. Though there's value in keeping it simple too. Gas generator engines got us to the moon and back. And if the goal is routine travel to Mars, I think we really need nuclear propulsion. And yeah, F1 is really impressive. Heck, the entire Apollo program was an astounding achievement in so many ways. Though the geek in me is disappointed that kerolox engines produce so much soot that you can't see the Mach diamonds..