Super-futuristic Parts

[SAP KSP]

Would there be super-futuristic parts that are possible (In theory) to build, for example,  a Light-electricity conversion based particle annihilation powered particle accelerator engine (it requires advanced technologies, including the mass production of Graphene and high temperature super-conductive material to construct), which is a type of super efficient anti-matter engine that have insanely high specific impulse (Like 1*10⁷ second) or a Helium⁴ or Protium or Carbon high-pressure thermonuclear reactor.

[Lowi_Sace]

antimatter would indeed be cool. Would require a lot of power and recoircess to make, store and use but will give very efficient and cool engines

I once red that small amount of antimatter could be mined from magmatic fields of planets