〃Thats right。〃
〃Well;〃 Barnes said。 〃Lets consider worst cases。 ''113'' Whats the worst case for what we might find?〃
Beth said; 〃I think thats clear。 Irrespective of whether its a multidimensional creature or a virus or whatever; irrespective of whether it shares our morals or has no morals at all; the worst case is that it hits us below the belt。〃
〃Meaning?〃
〃Meaning that it behaves in a way that interferes with our basic life mechanisms。 A good example is the AIDS virus。 The reason why AIDS is so dangerous is not that its new。 We get new viruses every year…every week。 And all viruses work in the same way: they attack cells and convert the machinery of the cells to make more viruses。 What makes the AIDS virus dangerous is; it attacks the specific cells that we use to defend against viruses。 AIDS interferes with our basic defense mechanism。 And we have no defense against it。〃
〃Well;〃 Barnes said; 〃if this sphere contains a creature that interferes with our basic mechanisms…what would that creature be like?〃
〃It could breathe in air and exhale cyanide gas;〃 Beth said。 〃It could excrete radioactive waste;〃 Harry said。
〃It could disrupt our brain waves;〃 Norman said。 〃Interfere with our ability to think。〃
〃Or;〃 Beth said; 〃it might merely disrupt cardiac conduction。 Stop our hearts from beating。〃
〃It might produce a sound vibration that would resonate in our skeletal system and shatter our bones;〃 Harry said。 He smiled at the others。 〃I rather like that one。〃
〃Clever;〃 Beth said。 〃But; as usual; were only thinking of ourselves。 The creature might do nothing directly harmful to us at all。〃
〃Ah;〃 Barnes said。
〃It might simply exhale a toxin that kills chloroplasts; so that plants could no longer convert sunlight。 Then all the plants on Earth would die…and consequently all life on Earth would die。〃
〃Ah;〃 Barnes said。
〃You see;〃 Norman said; 〃at first I thought the Anthropomorphic Problem…the fact that we can only conceive of extraterrestrial life as basically human…I thought it was ''114'' a failure of imagination。 Man is man; all he knows is man; and all he can think of is what he knows。 Yet; as you can see; thats not true。 We can think of plenty of other things。 But we dont。 So there must be another reason why we only conceive of extraterrestrials as humans。 And I think the answer is that we are; in reality; terribly frail animals。 And we dont like to be reminded of how frail we are…how delicate the balances are inside our own bodies; how short our stay on Earth; and how easily it is ended。 So we imagine other life forms as being like us; so we dont have to think of the real threat…the terrifying threat…they may represent; without ever intending to。〃
There was a silence。
〃Of course; we mustnt forget another possibility;〃 Bames said。 〃It may be that the sphere contains some extraordinary benefit to us。 Some wondrous new knowledge; some astonishing new idea or new technology which will improve the condition of mankind beyond our wildest dreams。〃
〃Although the chances are;〃 Harry said; 〃that there wont be any new idea that is useful to us。〃
〃Why?〃 Barnes said。
〃Well; lets say that the aliens are a thousand years ahead of us; just as we are relative to; say; medieval Europe。 Suppose you went back to medieval Europe with a television set? There wouldnt be any place to plug it in。〃
Barnes stared from one to another for a long time。 〃Im sorry;〃 he said。 〃This is too great a responsibility for me。 I cant make the decision to open it up。 I have to call Washington on this。〃
〃Ted wont be happy;〃 Harry said。
〃The hell with Ted;〃 Barnes said。 〃Im going to give this to the President。 Until we hear from him; I dont want anybody trying to open that sphere。〃
Barnes called for a two…hour rest period; and Harry went to his quarters to sleep。 Beth announced that she was going off to sleep; too; but she remained at the monitor station with Tina Chan and Norman。 Chans station had ''115'' fortable chairs with high backs; and Beth swiveled in the chair; swinging her legs back and forth。 She played with her hair; making little ringlets by her ear; and she stared into space。
Tired; Norman thought。 Were all tired。 He watched Tina; who moved smoothly and continuously; adjusting the monitors; checking the sensor inputs; changing the videotapes on the bank of VCRs; tense; alert。 Because Edmunds was in the spaceship with Ted; Tina had to look after the recording units as well as her own munications console。 The Navy woman didnt seem to be as tired as they were; but; then; she hadnt been inside the spaceship。 To her; that spaceship was something she saw on the monitors; a TV show; an abstraction。 Tina hadnt been confronted face…to…face with the reality of the new environment; the exhausting mental struggle to understand what was going on; what it all meant。
〃You look tired; sir;〃 Tina said。
〃Yes。 Were all tired。〃
〃Its the atmosphere;〃 she said。 〃Breathing the heliox。〃 So much for psychological explanations; Norman thought。 Tina said; 〃The density of the air down here has a real effect。 Were at thirty atmospheres。 If we were breathing regular air at this pressure; it would be almost as thick as a liquid。 Heliox is lighter; but its far denser than what were used to。 You dont realize it; but its tiring just to breathe; to move your lungs。〃
〃But you arent tired。〃
〃Oh; Im used to it。 Ive been in saturated environments before。〃
〃Is that right? Where?〃
〃I really cant say; Dr。 Johnson。〃
〃Navy operations?〃
She smiled。 〃Im not supposed to talk about it。〃
〃Is that your inscrutable smile?〃
〃I hope so; sir。 But dont you think you ought to try and sleep?〃
He nodded。 〃Probably。〃
Norman considered going to sleep; but the prospect of his damp bunk was unappealing。 Instead he went down to the galley; hoping to find one of Rose Levys desserts。 Levy was ''116'' not there; but there was some coconut cake under a plastic dome。 He found a plate; cut a slice; and took it over to one of the portholes。 But it was black outside the porthole; the grid lights were turned off; the divers gone。 He saw lights in the portholes of DH…7; the divers habitat; located a few dozen yards away。 The divers must be getting ready to go back to the surface。 Or perhaps they had already gone。
In the porthole; he saw his own face reflected。 The face looked tired; and old。 〃This is no place for a fifty…three…year…old man;〃 he said; watching his reflection。
As he looked out; he saw some moving lights in the distance; then a flash of yellow。 One of the minisubs pulled up under a cylinder at DH…7。 Moments later; a second sub arrived; to dock alongside it。 The lights on the first sub went out。 After a short time; the second sub pulled away; into the black water。 The first sub was left behind。