India, Jan. 1 -- In tech-industry circles, the ebb and flow of the attention paid to artificial intelligence (AI) has been likened to the seasons. Every now and then, a milestone product heralds an AI spring, setting in motion a flurry of reportage, analyses, conference sessions, start-ups, and funding. This first happened in 2018, when a company acquired by Google, DeepMind, invented AI models that outperformed humans in board games....