For hundreds of years Iranians have been migrating to many parts of the world. They took Islamic culture to other parts of the world and established it there.
I mean, making simulations of what you're going to build is tremendously useful if you can get feedback from them that will tell you where you've gone wrong and what you can do about it.
I always find cardio the most monotonous. Running on a treadmill shows me why hamsters are so crazy.

