So I started re-watching DBZ a few days ago and got through the Frieza Saga and had a thought. We know later on, that Goku is insanely powerful and godlike. Well something stood out to me and made me start thinking about this. After Frieza is destroyed and Namek explodes, Goku is off in space somewhere right? Well the Z warriors gather the dragonballs and they try to wish Goku home. Here's my thought....Goku denied the wish. Nowhere else in the series do we see the Shinron or Parunga unable to grant a wish because of the desires of the person involved, it's always a limitation on their own powers. That's not the case here. Here, Goku flat out denies the dragon. WTF? That's a huge plot point that doesn't really get pointed out but just goes to show how insanely powerful he really is.