"Large scale manned space flight within the solar system is still confronted with the solution of two problems: 1. A propulsion system to transport large payloads with short transit times between different planetary orbits. 2. A cost effective lifting of large payloads into earth orbit. For the solution of the first problem a deuterium fusion bomb propulsion system is proposed where a thermonuclear detonation wave is ignited in a small cylindrical assembly of deuterium with a gigavolt-multimegampere proton beam, drawn from the magnetically insulated spacecraft acting in the ultrahigh vacuum of space as a gigavolt capacitor. For the solution of the second problem, the ignition is done by argon ion lasers driven by high explosives, with the lasers destroyed in the fusion explosion and becoming part of the exhaust."

I love it.
I suppose many people would agree having short transit time between planets is a problem that needs to solve.
And a cost effective way of getting into orbit is another other solution we need to solve.

I would say that we don't need Deuterium Micro-Bomb propulsion to solve either of these problems.

Now, if this "Deuterium Micro-Bomb propulsion" actually worked I think moving space rocks might a better use for it.
I think there would a large market for moving around space rocks.

I think we can go to orbit with chemical rockets and we can have short transit times between from Earth to Mars or to Venus, or Mercury using chemical rockets.