I don't want to sound arrogant, here.
Please, give it a thought.
Our Earth and our solar system are part of ONE galaxy. There are billions of galaxies in the observable universe.
And we discuss on the existence of a non-existent. Put your sentiments aside and just give it a thought.
The cure for MS is not found, yet.
The moment it is found, we laugh at all the silly stuff we did, out of frustration.
Stay informed and don't, ever, give up hope.π