AAC (Augmentative and Alternative Communication) covers everything from picture cards on a ring to dedicated speech-generating devices to apps on an iPad. It's a huge category, and the "best" one depends almost entirely on the person using it. What we've learned the hard way: - The "prerequisites" myth. You don't have to demonstrate readiness to deserve a way to communicate. Modeling AAC alongside speech doesn't slow speech down — research consistently shows the opposite. - Robust simple. A sys…