What Is Dark Energy?

i think it would ratify this entire picture of the assembly history of black holes over cosmic time. That instrument could see supermassive black hole collisions almost out do when the first stars form. And we believe that you could have these three feeding modes and three kind of mass enhancing modes. So let's get to the weirdest and most mysterious thing and most abundant thing in the universe, dark energy. Could we go through the cosmic inventory, just to put all this in perspective? What is the composition breakdown?"