For reference, there was an article here on what it takes to track a million cell phones in real time. https://news.ycombinator.com/item?id=14803443 https://new

For reference, there was an article here on what it takes to track a million cell phones in real time. https://news.ycombinator.com/item?id=14803443 https://news.ycombinator.com/item?id=14803443