You could be the only conscious being

Solipsism is the philosophical theory that only one’s mind is sure to exist, making it impossible to verify the existence of the external world or other minds. It suggests reality is purely a construction of an individual’s consciousness, meaning only personal experiences are certain

This could be a simulation and you could be the only conscious being. The universe doesn’t need to exist. All you need to see is the sky, clouds and the sun during the day. And the sky, stars and the moon at night. The universe doesn’t even need to exist because you can’t explore it. This could just be an earth simulation

Things could just render in wherever you go, just like in video games

Simulations run on one conscious being in a real world environment

Nobody else actually gets hurt or suffers in the world, because they’re are all just NPC’s except for you, the individual

Now I know that this could just be dismissed by the amount of times I said ‘could.’ But is there anyway to actually prove that all of what I mentioned above isn’t true