I honestly have wondered if they are working with a prophet. Other people say it's just an extremely well thought out plan. Some say time travel or a quantum computer. Check out Project Looking Glass if you want to hear about some really far fetched stuff. No proof that it's true, only the word of a few people that claim to have worked on it, but it's interesting.

So basically, we don't know for sure lol

If it is just a well thought out plan, I feel like they snuck in parts of the plan into different posts throughout the years. Now, they can go back and reference certain posts that have those parts of the plan in it. There are thousands of posts, so I could see this working. I don't know. I'm fairly new to Q, so maybe someone else has a better idea.