and the mass estimates very correspondingly. To avoid preoccupation with details, these estimates are summarized in Table 2. Table 2 (Cost estimates for establishing a first manufacturing facility in space. Cost figures not in parentheses are based on transport rates of $1900/kg from the earth to the lunar surface and $950/kg to Lagrange point L5. Those in parentheses are based on the assumption® of transport rates reduced by a factor of 12, with an additional $10 billion added for vehicle development and no change in administrative costs. In this simplified table, personnel rotation, if required, and material resupply are within the tonnage figures.)
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