The ranges of IQ are not actually "infinite for all groups". While some humans have an IQ of 0, no human has had an IQ of 10,000. Why there is an evolutionary advantage to an upper limit of IQ around 200 is an interesting question that remains unanswered.
A range can be infinite even if no one is ever observed at some particular value. In any case, my comment refers to the mathematical models for this. The biologically plausible range, we don't know either, but hypothetically, if someone had every positive variant for IQ/EA we see in a GWAS, they would be many standard deviations above any person in history.
The ranges of IQ are not actually "infinite for all groups". While some humans have an IQ of 0, no human has had an IQ of 10,000. Why there is an evolutionary advantage to an upper limit of IQ around 200 is an interesting question that remains unanswered.
A range can be infinite even if no one is ever observed at some particular value. In any case, my comment refers to the mathematical models for this. The biologically plausible range, we don't know either, but hypothetically, if someone had every positive variant for IQ/EA we see in a GWAS, they would be many standard deviations above any person in history.