Just having a chunk of anti-matter isn't really "solving the energy problem", obviously you need to harvest the energy, but I think that given nearly unlimited

Just having a chunk of anti-matter isn't really "solving the energy problem", obviously you need to harvest the energy, but I think that given nearly unlimited energy, propulsion is a much easier problem to solve. One possibility is: https://en.wikipedia.org/wiki/Robert_W._Bussard#Bussard_ramjet https://en.wikipedia.org/wiki/Robert_W._Bussard#Bussard_ramj...