with low cost fusion. Anyone with a little ambition and some technical expertise can build and test a demonstration "fuser" that achieves some fantastic effects without achieving actual fusion (which would require shielding from the neutrons produced). Once a demo machine is perfected one can introduce a little deuterium and achieve actual fusion (while using the proper safety procedures to contain the neutrons of course).Then there's "Rods from God" that shows Thor is not dead. Thor is a "smart rock" concept
suggested by Dr. Jerry Pournelle waaaaay back in the sixties.I think this is something we should be working very hard on. Dropping "rocks" on the bad guys heads from space has a certain appeal!
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