Robert J. Bradbury, <firstname.lastname@example.org>, writes:
> Look at my comments on Robin's paper at:
> Somewhat out of date because of the more recent work I've done.
Robin had written, regarding possible reasons why we don't see an engineered universe:
> First, large-scale engineering such as orbiting solar collectors made from
> asteroids, Dyson spheres, and stellar disassembling might be effectively
> impossible, explaining why nearby stars look so natural. Second,
> structures that best use such resources might happen to almost always
> preserve natural spectra and other appearances. Third, our understanding
> of astrophysics might just be very wrong, so that the apparently dead
> stars and galaxies around us really are very alive.
> Even without nanotechnology, Von Neumann type factory operations
If we extrapolated the use of horses in the 19th century we could build a
Dyson Shell out of horseshit in a few hundred years.
> would allow asteroid and planetary engineering. If current growth
> rates in silicon wafer production continue, we could construct a
> Dyson Shell with microprocessors within 300 years.
If we extrapolated the use of horses in the 19th century we could build a Dyson Shell out of horseshit in a few hundred years.