The latter are reminiscent in scale to the putative nuclear-fusion reactors, said to mimic processes in stars, e.g. thesun, of which a working model is not expected for at least another 60 years.
The fact that different bodies in the solar system change their relative positions as they orbit thesun will, Dr Hooke concedes, complicate routing a bit: when the earth and Mars are on opposite sides of thesun, for example, it might be best to send e-mail via Venus.