A forensic analyst conducts DNA testing to help identify missing flash flood victims at the National Forensic Science Laboratory in Lalitpur on September 19, 2026. The tsunmai-like floodwaters tore through mountain districts, destroying roads, bridges and hydropower dams, and killed at least 1,446 people. More than 6,500 remain missing across Nepal and China. Nepal authorities appealed on September 9, for overseas family members of the missing -- preferably parents or children -- to submit DNA samples via email. (Photo by Prakash MATHEMA / AFP via Getty Images)

(COMBO) This combination of pictures created on September 18, 2026 shows (From L top) Google CEO Sundar Pichai on May 19, 2026, US President Donald Trump on July 13, 2026, China's President Xi Jinping on August 31, 2026, Amazon Founder and CEO Jeff Bezos on June 6, 2019 (From L bottom) Open AI CEO Sam Altman on September 2, 2026, Nvidia CEO Jensen Huang on July 16, 2026, Apple CEO Tim Cook on June 8, 2026 and CEO of SpaceX and Tesla, South African-Canadian-US businessman Elon Musk on January 22, 2026.. Nvidia boss Jensen Huang and OpenAI chief executive Sam Altman are among the tech leaders expected to attend a White House state dinner for Chinese President Xi Jinping next week, a US official said September 18. "It'll be a very popular and hot-ticketed event," the official said on condition of anonymity, adding that Amazon founder Jeff Bezos, SpaceX and Tesla chief Elon Musk, Apple head Tim Cook and Google CEO Sundar Pichai will also attend. Their presence comes as artificial intelligence is set to loom large in the talks between the two leaders, with the United States and China the two dominant powers in the AI race. (Photo by AFP via Getty Images)

A robot named Nao (C) stands on the floor during a session with residents, at the Broca Hospital, on September 16, 2026, in Paris. The potential of AI to soothe patients and stimulate their cognitive functions is also being explored at the Broca Living Lab, an applied research laboratory run by the Assistance publique-Hôpitaux de Paris (AP-HP). (Photo by Lou BENOIST / AFP via Getty Images)

A person living with Alzheimers disease uses a phone to speak to an AI chatbot called 'Livanna', at a care home for people with neurodegenerative diseases, in Septfonds on September 17, 2026. According to France-Alzheimer, around 1.4 million people are affected by this neurodegenerative disease, which severely impacts memory, cognitive functions and independence. At La Septfontoise, near Montauban, the telephone used by the care home is equipped with an AI system called Livana, which has been trialled for several weeks by seven of the 29 residents in the secure unit for people with Alzheimer's disease. (Photo by Ed JONES / AFP via Getty Images)

A carer hang a robot named Nao during a session, at the Broca Hospital, on September 16, 2026, in Paris. The potential of AI to soothe patients and stimulate their cognitive functions is also being explored at the Broca Living Lab, an applied research laboratory run by the Assistance publique-Hôpitaux de Paris (AP-HP). (Photo by Lou BENOIST / AFP via Getty Images)

A carer programmes a robot named Nao (L) before a session with resident, at the Broca Hospital, on September 16, 2026, in Paris. The potential of AI to soothe patients and stimulate their cognitive functions is also being explored at the Broca Living Lab, an applied research laboratory run by the Assistance publique-Hôpitaux de Paris (AP-HP). (Photo by Lou BENOIST / AFP via Getty Images)

A robot named "Miroki" (L), a carer (C) and residents attend a "robot session", at the Broca Hospital, on September 16, 2026, in Paris. The potential of AI to soothe patients and stimulate their cognitive functions is also being explored at the Broca Living Lab, an applied research laboratory run by the Assistance publique-Hôpitaux de Paris (AP-HP). (Photo by Lou BENOIST / AFP via Getty Images)

A phone handset used by people living with Alzheimers disease to talk with an AI chatbot is displayed at a care home for people with neurodegenerative diseases, in Septfonds on September 17, 2026. According to France-Alzheimer, around 1.4 million people are affected by this neurodegenerative disease, which severely impacts memory, cognitive functions and independence. At La Septfontoise, near Montauban, the telephone used by the care home is equipped with an AI system called Livana, which has been trialled for several weeks by seven of the 29 residents in the secure unit for people with Alzheimer's disease. (Photo by Ed JONES / AFP via Getty Images)