Yet another typo.
/**
* Sometimes, a tracking system (i.e. for room-scale VR) provides a pose for the player hand position. In this
- * case, spe$ial handling is necessary, and this accessor gives a way to check.
+ * case, special handling is necessary, and this accessor gives a way to check.
* @return true if this class is receiving tracking updates, false if not.
*/
public boolean isTracked() {
