#Witness of the times #90 is to witness the rapid development of science and technology generation, from the first telephone in childhood, the first big brother, the first PHS, and now can video call smart phones, we have witnessed the rapid development of communication, we are also the direct beneficiaries of this product, young people who study and work hard outside can ease their thoughts about their families through video calls, and the elderly and children left behind in their hometowns can also alleviate the concern for their relatives in other places through video calls. Childhood impression of the color TV set has been enough to be proud, neighbors crowded together in front of the TV, punctual waiting days as if just yesterday, today's ultra-thin display, AR interactive experience, children have long been strange, I have to say that the times limit our imagination, we have witnessed the rapid development of science and technology, a new type of technology continues to emerge, we are witnesses, but also creators, the new era will continue to develop under our joint efforts, and constantly create new brilliance!