Well, doing some simple math, and making some assumptions based on the professor's comments:
Assuming 10% meant the US population, let's say 30 million to be conservative.
Neither liberal or conservative. So, an even spread of all, including independents.
That would leave us with about 10 million liberal minded folks that look upon the Q experience favorably.
No wonder Parscale already knows 2020 is the bag.
Early is best. You will meet a lot of great folks, and enjoy the energy of the event.
Know your own needs for water, food, rest, potty, weather, etc and plan accordingly. While there are provisions for these items, it best to be prepared. If you have the need for chairs and other infrastructure, there usually a place just outside the venue where these are typically left for your retrieval after the event. Don't expect them to be there, but I think you will pleasantly surprised.