Sure the difference between hearing about a tesseract and being able to visualise it is significant but I think the difference might not be an impossibility barrier but just skill level of imagination.

Having learned some echolocation my qualia involved in hearing have changed and it makes it seem possible to be able to make a similar transition from a trichromat visual space into a tetrachromat visual space. The weird thing about it is that my ear receives as much information that it did before but I just pay attention to it differently. Having deficient understanding in the sense of getting things wrong is easy line to draw. But it seems at some point the understanding becomes vivid instead of theorethical.