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I dont see why a computer cant be conscious

Because we only know consciousness in humans and maybe higher animals. All of which are radically different from computers, which are nothing but elaborate light switches. Unless and until consciousness can be reduced to a physical process that causes it, and this process included in a computer's design, there's no reason to assume that computers will become conscious. Now if you are saying that computers could be made to appear intelligent (i.e. Turing Test) then that's a possibility, but so far the results have been disappointing.