IQ can only really be calibrated relative to a specific test for it. I don't think there are tests for which even a perfect score would yield a value above 160, since the scoring is basically what percentile of the population you are scoring higher than. It's not like the tests are even modeled as approximations to some "ideal" test; they are fundamentally about trying to measure deviation against the population at large.
Talking about IQs in excess of human intelligence is not really interesting because of that. It's just not a designed for measuring intelligence as an actual number.
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IQ can only really be calibrated relative to a specific test for it. I don't think there are tests for which even a perfect score would yield a value above 160, since the scoring is basically what percentile of the population you are scoring higher than. It's not like the tests are even modeled as approximations to some "ideal" test; they are fundamentally about trying to measure deviation against the population at large.
Talking about IQs in excess of human intelligence is not really interesting because of that. It's just not a designed for measuring intelligence as an actual number.