I guess they are referring to chip scale atomic clocks, which are apparently already a real thing. Seems like scaling up manufacturing to commercialise is the c

I guess they are referring to chip scale atomic clocks, which are apparently already a real thing. Seems like scaling up manufacturing to commercialise is the current challenge, so maybe a few years away? https://en.wikipedia.org/wiki/Chip-scale_atomic_clock https://en.wikipedia.org/wiki/Chip-scale_atomic_clock