After a year of decline, the tech industry’s prospects have rebounded with strong growth from Meta, Google, Microsoft, and Amazon. The slump exposed a weakness in the industry, as the world’s largest tech companies had not developed a big new idea in years. Now, the companies are hoping that artificial intelligence will be the answer to the problem and a way to refresh aging product lines. Amazon, Apple, Google, Meta, and Microsoft are all investing in generative AI technology, which powers chatbots like ChatGPT.