Big fund-raising rounds and high valuations have some wondering whether the AI sector is in a bubble in the nature of the dotcom boom. As of this writing, OpenAI is valued at over $80 billion; Amazon added another $2.75 billion to its investment in Anthropic; and even some very early-stage startups, like France-based Mistral AI, have racked up hundreds of millions in venture-capital funding at valuations over a billion dollars. Alphabet CEO Sundar Pichar has said AI could be more profound than the invention of electricity or the discovery of fire. Is the hype real?