Another question I have is what if I am the only person on earth, what if everybody else is just programmed and the world is all just one huge puppet show and I'm the only one who's not a puppet. If someone tried arguing with me saying that they are real, how could I ever possibly know if they are telling the truth, I can't go into their brain and look from their point of view.
What does this look like to me compared to what it is to you. What if a gray object (from my point of view) is actually red to them and they think that whenever they see the colour red, it's actually gray and they think that the colour red is called gray, this also links in with my last question. It is never going to be answered because it is impossible to define a colour and we can't see what other people see. I don't know if you will be able to understand this one.
The universe has so many unanswered questions that continue to puzzle everybody, it's crazy to think about how many things we don't know.
I could probably rant on forever about things but you probably don't have time for that. Also, if you have any unanswered questions, leave a comment and let me know, I'd love your feedback as well.