I know for sure we live in a simulation. I have seen it. Our experience of the world is more like a movie or hologram. The technology that creates this experience is very advanced and is of non-human origin. Our scientific experiments, as well as, our computers and technology are experiences that are pre-recordings. There is nothing physically real here on Earth.
This is not some intellectual argument I am making. I'm telling you directly. I have seen it first hand with my own eyes.
The observable universe that you see at night and conclude is 46 billion light years wide, or whatever, is more like a screen saver.
Q: Why would this be? You might ask. A: Because, human beings are being deceived and exploited.