Your brain is something else!
There are more nerve connections in a human brain then there are stars in the galaxy. Who would have thought?Doesn't sound right?
Astronomers have appraised there are more than 200 billion stars in the Milky Way. But the Neuroscientists say there are about 1 quadrillion nerve connections in a average 3 year old's brain. After that? There is a slimming down process where in a adult there are about half of that amount (about 500 trillion).