Rotating detonation

As we fine-tune detonations, here's Japan actually putting it into practice. They are using a rotary model. Which sounds a bit like what we want to do to cut engine mass in our own cars.

Engines on rotation would I think go best with short-burst high-energy thrust, like Raptor-Two which Elon hopes won't melt. For higher MJ/kg at even shorter times of BOOM BOOM we might scale up to that sustained-detonation or even Orion. UPDATE 7/6/22 or, in between methane-chemistry and nuclear-pulse: POP FAME or the metastable nucleus.

What Japan is doing sounds great for orbit-adjustment in Earth's own well, like for shuttles and such. Although for longer-distance missions I should still prefer nuclear power. Like to redirect any part of any big nugget of metal.