There are a number of interesting cases of people being raised without language, and then being studied later in life: https://en.wikipedia.org/wiki/Language_de

There are a number of interesting cases of people being raised without language, and then being studied later in life: https://en.wikipedia.org/wiki/Language_deprivation https://en.wikipedia.org/wiki/Language_deprivation I think it's a massive, massive stretch to make the claim that any of them weren't conscious.