As you probably know, inside of a nebula gas particles attract each other and start to clump up. The larger the clumps get the higher the gravitational pull of the whole, until eventually the pressure in the core is so great fusion starts to take place, lighting it up like a spherical candle. After the star has lived and expanded into a giant star it dies out and explodes or implodes, possibly making another nebula or forming a neutron star. Well i was thinking about this while coming up with a name for my film production (irrelevant), and i began to think about how the universe is still expanding. What if our universe does the same thing? It seems as though everything in our observable universe goes through cycles, so don't you think it would be logical that energy did the same?
I apologize if my grammar is bad or my question is mixed up, my mind is currently fried for other reasons.