Barney Oliver

If interstellar travel is as time- or energy- demanding as the above figures indicate, it is far from obvious what the motive for colonization might be.

It would be a pity if, frustrated by the price of travel, we elected to become a society that never made contact, that never gave SETI a fair chance.

Above all, I would not expect a wise race, at great expense, to set loose an army of self-replicating robots.

If you compare NASA's annual budget to explore the heavens, that one year budget would fund NOAA's budget to explore the oceans for 1,600 years.

The existing system will be quickest and most radically overthrown by the annihilation of its exponents. Therefore, massacres of the enemies of the people must be set in motion.

Tourism, human circulation considered as consumption is fundamentally nothing more than the leisure of going to see what has become banal.