[lebuffon]

I look at culture, under which I put language as a component, as the O/S of the human brain. So yes a brain with no O/S can think but it probably will never replicate, in one life time, the accumulated thinking skills of a brain given a good O/S.

How many of us would independently reinvent language with specific tenses, the diatonic scale, the number zero, perspective drawing, geometry, calculus, atomic theory, quantum mechanics etc. if left on our own from childhood?

So to me, the question becomes, can human language encode the sum of all human thought? The answer might be no. But it might be good enough to get close.