When I was a child in school the teacher told us the world was not flat, that it was round. I had never thought of the world having shape. He seemed too pleased to tell us this. He said people had believed we could just walk and walk and eventually would fall off the edge of the world. He demonstrated by walking his two fingers along his desk, stopping and looking to see if we were looking and then dangled his two fingers over the edge and screamed a little until it changed into a laugh. We all laughed too.

Falling off the edge of the world, he said. How ridiculous is that, he said. One boy, one who always loved asking questions, asked but how come we can fall of the edge of our seats. The teacher smiled at him and said it was because of gravity. He said it again, but this time he said it more slowly, breaking up the sounds and telling us that was why; gravity was the reason. The boy asked what gravity was. The teacher said it was a force that kept us fixed to the ground. The boy asked what a force was and the teacher smiled again, scanned the whole room, bit on his bottom lip and said it was gravity, gravity was a force that stopped us from flying away. Another boy said we could not fly away because we had no wings. The teacher said if there was no gravity we wouldn’t need wings, we could just jump and fly. I said why would we need to jump. He said because we would be on the ground. He jumped to demonstrate. I said but isn’t gravity what keeps us on the ground. He said yes. I said without gravity we would not be on the ground so how could we jump. He scanned the room again and said I had all the answers. I said that was a question. I said how could we jump if we were not on the ground. The teacher laughed. He said he would like to walk me to the edge of the world and let me fall off. He laughed again. The class laughed too. I said if we got to the edge of the world I would push him off. He did not laugh. The class laughed. But the world is round he said. You couldn’t push me off he said. He began to laugh. I said I would not be walking anywhere with him anyway. This time we all laughed.

The teacher picked up an orange from his desk and held it out. He rotated it in his hand and told us the world was like the orange.