A realist is more correct about things in life than an optimist. But the optimist seems to have more friends and much more fun. The law of gravity says no fair jumping up without coming back down When they broke open molecules, they found they were only stuffed with atoms. But when they broke open atoms, they found them stuffed with explosions. South America has cold summers and hot winters, but somehow they still manage.
Most books now say our sun is a star.
But it still knows how to change back into a sun in the daytime. A vibration is a motion that cannot make up its mind which way it wants to go. Many dead animals in the past changed to fossils while others preferred to be oil. Some oxygen molecules help fires burn while others help make water, so sometimes it's brother against brother. Some people can tell what time it is by looking at the sun.