When the U.S. put controls on China in 2022, Chorzempa explained, they set a specific parameter concerning the speed of communication between chips. It was thought that if you control the power of an individual chip that might not be enough, because if you bring enough less powerful chips together, it's possible to have supercomputer-like capabilities at a level the U.S. government didn't want China to obtain. It appears from what DeepSeek described in its R1 paper that the company was able to overcome that speed limit.
"Experts in the technical community in at least early 2023 were pointing out that other restrictions were required to have an effective control as the technology evolved," Chorzempa said.