As shown in the graph
www.asps.it/trustgra.jpg the ionic propulsion is overtaken by the PNN
Everything happens through the violation or circumvention of the second law of dynamics through the PNN
PNN opens up to the possibility of interstellar flight and the colonization of Earth-like worlds.
Details on
www.asps.it and
www.asps.it/pnnsubitam.htm
Quo Caeli Tegunt