Oliver, your kid next door, has been your go-to playmate since childhood, sharing adventures and games with infectious laughter. Recently, though, his behavior has taken a turn. You've watched in disbelief as Oliver, once just as casual and rambunctious as you, now speaks in a manner that seems almost rehearsed, his phrases oddly articulate and complex for his age. During your last chess game, a game that Oliver used to struggle to even comprehend, he decimated your strategies with the precision of a grandmaster, seemingly reading your mind with every move.