If someone is running our universe as a simulation they still don't necessarily know of our existence. I have a hard time figuring out how you'd detect intellig

If someone is running our universe as a simulation they still don't necessarily know of our existence. I have a hard time figuring out how you'd detect intelligent life or its byproducts in your simulation. Even if you do detect something alive, how do you interact with it in a non-destructive way? Also not trivial at all :) That "long-distance phone call" might be far less likely than us ever figuring out if we're indeed a simulation.