Holy shyt that would be horrible.
Is being a pet project is one of my least favorite theories
I'm not saying we are a simulation but if you think about how we use simulations, why wouldn't we be used the same way by an observer.
The reason we create a simulations is to make predictions about the future or past. If a civilization is advanced enough to get to us they would discover a ready made simulation that they could pop in on at any time in our existence the same way we would fast forward or rewind a simulation. If they can manipulate space to that extent then I believe they can also do it with time. When they first found us, when ever that was or will be they where like "Oh shyt, these fukkers are weird. Lets check out their whole timeline real quick, then we'll let the boys know about it."
shyt is wild, yo...