Because in Ra's picture there is nothing to transmit between them. He treats speech as strategic, a product of the larynx mutation in Gate 12 that let humans pass detailed information quickly and over distance, and he says Raves will not need it because they are the penta: the awareness is shared rather than sent. More than once he says he expects them not to develop sophisticated speech in our sense. What he never uses is the word telepathy, not once. Nor does he describe any technology or interpreter role beyond noting that humans will have to care for them early on. Treat this as his speculation about a form nobody has met, which is how he framed the Rave descriptions in general, rather than as a prediction you can test.
This is not a fact, not medical advice and not a promise of healing. It is part of the cosmology Ra Uru Hu, who founded Human Design, left behind, and nobody knows exactly how it will unfold.
Free, no account and no email. Every answer here was written by hand from what Ra Uru Hu left behind, not generated. Ask your own question at The 2027 Oracle.