NakedApron
Seems forceful of you to make Evin coherently spouting words at that age. His brain is still not fully well developed for such feats. Should have stick to the "reduced intellect show" or "skipping time" at least. It's fiction i know so the way body works might also be different but i can't seem to rid it out my mind when he just suddenly beats science altogether in one chapter. Maybe some research on some facts on the infancy stages might do you good (I'm a biologist maybe that's the reason why this matter seems very important to me). All in all, good effort!