Just imagine you emulated a grown up human mind

As a “superhuman AI” I was thinking about a very superhuman AI; the same does not apply to slightly superhuman AI. (OTOH, if Eliezer is right then the difference between a slightly superhuman AI and a very superhuman one is irrelevant, because as soon as a machine is smarter than its designer, it'll be able to design a machine smarter than itself, and its child an even smarter one, and so on until the physical limits set in.)

all of the hard coded capabilities of a human toddler

The hard coded capabilities are likely overrated, at least in language acquisition. (As someone put it, the Kolgomorov complexity of the innate parts of a human mind cannot possibly be more than that of the human genome, hence if human minds are more complex than that the complexity must come from the inputs.)

Also, statistic machine translation is astonishing -- by now Google Translate translations from English to one of the other UN official languages and vice versa are better than a non-completely-ridiculously-small fraction of translations by humans. (If someone had shown such a translation to me 10 years ago and told me “that's how machines will translate in 10 years”, I would have thought they were kidding me.)