If the Simulation can detect the concious thoughts that may lead to it's
discovery, it will intervene create results that obscure it.
The computer power neccessary to Create the simulation is vastly overated.
You only need to fully simulate 2-3% of minds, the rest can be automatons, only being made whole on the random chance that that fully
rendered mind interacts with these simpleton automatons.
That assumes that the simulation is akin to
The Matrix - Earth is the focus, people are simulated, and rest of the universe is just a background.
Even then there are problems - all the "background" would take way more computational resources than any single "mind", so simulating only 2-3% makes no sense.
Neither is it making sense per se - every person appears to be quite complex, curiosity or not.
All their stories are still played out from start to finish.
If they are background, then the requirements on this "background" is only a touch less than on "real" minds.
If, however, it's
The Universe that is simulated, then humans, "consciousness", people, etc is probably not even recognizable, and is hardly unique.
The resources needed are either extreme, on the scale of the entire universe running itself;
Or else extremely small, if proper fractal compression is used.
In the latter case the universe might be just a pattern of a single equation, akin to mandelbrot set - infinite in size, finite in complexity, inconceivable in simplicity.
The latter case seems to make more sense.
Everything is falling together, complexity is increasing constantly.
A gas cloud 6 billion years ago collapsed on it's own accord into planets, life, humans, and that computer you're staring at.
Just like if there is an attractor embedded in the laws of physics, making the universe converge on some sort of The Solution which is the point of making the whole thing.