It's not as nice as cooking it properly, but you can cook rolled oats in the microwave in a couple of minutes.

If you lower the power and cook for longer or ends up being pretty much the same.

For my 1000W microwave I reduce power to 30% and cook for 12 minutes. Comes out perfect with little difference between stovetop.

Exactly.

Also, if you are hundreds of thousands of miles from the center of mass of the sun, you'd feel the same force from gravity as if you were the same distance from the center of mass of a black hole (with the same mass).

Far away, the curvature of spacetime is the same, it's just that with black holes you can get waaaay closer to the center of mass whilst still being outside of it.