Some thoughts about Q from Simon Parkes and Kerry Cassidy.
They talk about the satellites that Q dropped info of, Snowhite etc., and the possibility that Q has access to an advanced AI computer that can predict the future based on past events.
Might explain how the Q clock can be accurate and the statement "Future proves past" might work.
Starts at 48m 7s.
https://youtu.be/Ao-_gNI0grk?t=48m7s