This one is an easy one to wrap your head around. They would know the fraud etc. was going to take place many years in advance. They already knew about the fraud for the 2016 election so they knew 2020 was going to to be on a much larger scale.

They've also been listening to dem coms via the NSA, so they probably hear plans far in advance.

They would have known that they'll likely need to use the emergency broadcast system around this time and inserted those Q posts ahead of time to reference now and alert Q followers.

If they didn't need to use it, then Pompeo wouldn't have made that tweet. But since they do, he waits until the date aligns to drop the tweet and let us know what's going on.

They've basically spent the past several years laying this framework, a map, in the Q drops and they're able to activate certain drops for us to see if they choose to by waiting until they get a date alignment or some other pointer to the relevant drop. The date alignments have been chosen years in advance based on knowing what's likely going to happen in the future due to intel and knowing that certain dates are important like the 20th innauguration date etc.

And they're military intelligence, so some of the brightest minds would be behind this stuff.