"We have the technology working in select cases, but it isn’t ready for widespread use. The clock requires a substantial reprint of the cerebral cortex and therefore a unique design for each person. That is time and data intensive. To make this a widespread implementation, I need huge amounts of biological information, and fewer than ten thousand people have been fully scanned and reprinted so far. That isn’t anywhere near enough; I need a hundred thousand more to perfect a clock ready for widespread distribution."