I asked a chatbot scenarios for AI wiping out humanity and the most believable one is where it makes humans so dependent and infantilized on it that we just eventually stop reproducing and die out.

Oh no, who would have thought that short term thinking would cost us in the long term?

Well argued. Also, even if it is a bubble, it’s arguable that most technology innovations are preceded by necessary bubbles which are important for directing investment into emerging technologies. The railroad mania in the 19th century or the fibre optic rollout in the late 1990s, during the dot com boom, benefited humanity long after the froth and excitement subsidied.