Esta doesn't have the words, or concepts, to describe the way his own brain is crashing.  Even if Esta had Tongues for Baseline and Cultural Adaptation running, those little spells would not suffice -- either for Esta to suddenly possess the education of a dath ilani teenager who could figure out basic concepts on the fly, or the much more specialized knowledge of those dath ilani who would already know details.

Esta doesn't have the words, or concepts, to describe the way his own brain is crashing.  Even if Esta had Tongues for Baseline and Cultural Adaptation running, those little spells would not suffice -- either for Esta to suddenly possess the education of a dath ilani teenager who could figure out basic concepts on the fly, or the much more specialized knowledge of those dath ilani who would already know details.