Who knew the ministry of silly walks[1] would be a privacy measure in the future? In all seriousness, the confidence interval of this is really low - 83% among

Who knew the ministry of silly walks[1] would be a privacy measure in the future? In all seriousness, the confidence interval of this is really low - 83% among a tiny pool of individuals. It's really interesting to be sure, but the tiny amount of confidence would make it extremely unlikely to be used in the context of justice/law enforcement (then again, maybe not [2]). [1] https://www.youtube.com/watch?v=78OKaiYld1E https://www.youtube.com/watch?v=78OKaiYld1E [2] 10% false positive rate in active use: https://www.smh.com.au/national/nsw/mobile-cannabis-tests-on-drivers-gave-inaccurate-results-researchers-say-20190912-p52qm6.html https://www.smh.com.au/national/nsw/mobile-cannabis-tests-on...