The Interstellar Ram Jet

The construction problem addressed here, in combination with the revised cut off speed, puts the interstellar ram jet in the realm of extremely advanced engineering physics. It's very unlikely that even a cardeshe civilization of type two might build ram jets type two. Being able to travel to the centre of our galaxy within a human lifetime isit is not going to happen. You deftly do not carry your source of your fuel with you if you want to do that. My money is on solar sales for interstellar travel.