Zubrin

None the less, I would recommend his book 'The Case for
Mars'. If nothing else, reading the book should give you some idea as to
what we are up against. Zubrins 'Case for Mars' has probably done more to
wreak the 'High Frontier' than all else combined. And "Entering Space" devotes even more pages to a patient explanation of how everything O'Neill ever said was wrong. I've since learned that one reason for this hostility is that apparently devotees of Mars took some of O'Neill's comments regarding the relative disadvantages of planets as locations for settlement as adirect attack. When lashing out at High Frontier, they feel that they're only counter-attacking. The unfortunate situation is that we can't very well comment on the advantages of settlements in orbit without pointing out disadvantages of the alternative. Some of my own criticisms of Zubrin's criticisms can be found here: http://members.aol.com/oscarcombs/case_spc.htm#Robert_Zubrin http://members.aol.com/oscarcombs/spacsetl.htm#zubrin