Chinese authorities are using a new term for their combined approach of restricting citizens’ movement through tech surveillance and pandemic lockdowns. Analysts have expressed concern over the new tactics, which single out individuals for being a “companion in space and time” with a COVID-19 patient. The Public Security Bureau of Chengdu City in southwestern China’s Sichuan Province issued a notice that, as of Nov. 4, they have identified 82,000 residents as exposed to the risk of being a close contact to a person infected by COVID-19, reported state media outlets. By official definition, a “companion in space and time” is a cellphone owner whose number was found to have stayed for more than ten minutes within the same area as a confirmed COVID-19 case, diagnosed with the last 14 days. Cellphones within a half-mile grid are considered to have been in the same area. The size of the grid is …