Now Its clear noone will know the answer to this for sure. Although, I can't help but to wonder if on some scale. Is the galaxy moving so fast that the spinning causes the spiral arms? In other words, if we looked at say the andromada galaxy with a scope that is 50 times more powerful than anything currently. Maybe even left our solar system and galaxy and traveled closer to it in deep space. Would we see the tremedous speed and the spinning?