Why LaMDA Is Not Really Sentient

Why LaMDA Is Not Really Sentient - An illustration of a meme, that has the following text on top: "1999 - Nineteen Ninety Nine; 1888 - Eighteen Eighty Eight; 1777 - Seventeen Seventy Seven; 1111 - ????" Below this text, on the left is a smart looking male character with the label "You →" saying "Eleven Hundred Eleven." On the right is another smart male character labelled "AI →" saying "Oneteen Onety One!"
LaMDA is Google's state-of-the-art chatbot system. A software engineer named Blake Leomoine recently claimed that LaMDA is sentient. This led to a controversy!