I think therefore I exist

Seems like this is the last round. I regret not making it slightly longer. Of course that wouldn't have been necessary if I would have clarified better. But hindsight is 20/20. Now to prove "The people that I imagine don't actually think, I merely think of what they would think, they never actually have an output, I merely think of what that output would be, so any thoughts they have are really my, and the thing that actual thinks exist." isn't an opinion but an observation, I am going to give examples from my imagination. Now it is impossible to explain the background of the imaginary universe I have made in my head in 9000 characters. Plus it would be irrelevant for me to explain it for the purpose of this debate. So one person I have imagined in the universe I made up in my head, is Peter Forest. I know he doesn't think because when ever he makes a decision, thought, or statement, it is because I thought he would make that decision, thought, or statement. If I didn't think about what he would do, he merely wouldn't do anything. Anything he does is nothing but a thought in my mind. Since he is comprised of nothing but my thoughts, then he doesn't actually think. What would you claim he thinks, is nothing but my thoughts about what he would think. Since Peter Forest technically doesn't have any thoughts, he doesn't exist. Now with your comment on characters in a show or game, their supposed thoughts are nothing but their creator's thoughts about them. They cannot think that they exist, since if a character says the statement "I think therefore I exist." they really didn't think of it or say it. What really happens is that their creator thinks that the character they have made up would say this. Anything the character does is really somebody thinking about what would they do. Now you have a claim that we are are not definitely sure about anything about existence. This claim is only half true. We cannot be sure what other than ourself exist. We cannot be sure how we exist. But we are sure that we exist. Now I am going to ask a question. If I built a robot that would copy your actions and responses, does it actually feel what you do? Instead of actually being sad or happy it is merely copying what actions you are doing. It doesn't consider what pain or happiness is, it just merely takes it as an input, and gives an output, no thoughts, no emotions. Now just to hammer in my point, I am going to give another example. What if a robot needed you to think it feels sad so it could get you to tell it classified information (lets assume you have classified information about top secret research project). The robots is knows how to copy the actions a person does when it is sad. The robot itself isn't actually sad, it is merely pretending or acting like it is. Does this robot actually have the emotion of sadness? Now I want to pose the question. If I don't exist, how would I be able to think about me not existing? Your response is likely going to be that I am simulation and I was programmed to. But If I was a simulation, would I actually think about me not existing, or merely calculate what would be the output of this thought if it was real. So I conclude, "I think therefore, I am" Thank you for this debate.