  Machine-learned language models have transformed everyday life: they steer us
when we study, drive, manage money. They have the potential to transform our
civilization. But they hallucinate. Their realities are virtual. This note
provides a high-level overview of language models and outlines a low-level
model of learning machines. It turns out that, after they become capable of
recognizing hallucinations and dreaming safely, as humans tend to be, the
language-learning machines proceed to generate broader systems of false beliefs
and self-confirming theories, as humans tend to do.
