You've lost me on this bit. Who stated that there was a black hole there? As far as I know the nearest black hole so far discovered is over 1600 light years away, certainly far far removed from our galaxy.
Well there is something at the centre of our galaxy, it has a 26000 year cycle so it rotates around something.
Like i said I believe it to be gravity travelling in 2 directions pushing and moving against each other i believe these are CF forces from neighbouring galaxies which when they meet are actually opposing forces of gravity, creating a pressure cushion between them creating a gravity field. As this pressure build, the forces escape aroung the edges of the galaxy.
In fact, you could even say gravity does not exist. All there are are centripetal ( inwards toward the centre) forces and centrifugal( outwards away from centre) forces, they are the opposites.
http://en.wikipedia.org/wiki/Centripetal_force
2 CP forces colliding will create 1 CF force which has the power of 2 CP forces between its parent forces only, when it leaves them it has the power of 1 CP force and will meet an equal force coming from a different direction and create 1 CF force. Galctic reproduction, and mirrors all lifes reproduction
EDIT, actually wont that mean that all forces are centrifugal?
1 male + 1 Female = 2 people = 1 complete reproductive system.
Heads + tails = 2 sides = 1 coin
Alpha + omega = 2 forces = 1 struggle
summer solstice + winter solstice = 2 six month periods = 1 year
night + day = 2 cycles = 1 cycle
good + evil = 2 perceptions = 1 instance
Bushcraft + survival = 2 different applications = 1 skill set
1+1=2=1
Or would that just be 1+1=1+1=1+1=1+1=1 etc etc
To quote Bravo4's post.
"god takes the simplest way, he isn't mean and he doesn't play dice"
Lifes not about balance and neithers the ying yang, its about completeness.