John had no idea what he was going to do. Of course he knew how to make technological breakthroughs, but how could he do it on a small island, on a foreign planet, woth no tools. He was depressed due to the fact that that he had no idea what to do. His whole life filled his thoughts: His childhood, his wedding, and even his children being born. These thoughts propelled him to work hard on his spaceship.
He felt lonely. He is used to people greeting him on the streets. He was used to working with a team. But there was no one around to do these.
Then, John got an idea. maybe there were metals in the island, Then he could make everything from scratch. He dug wit his hand, and hope came when he found the metal there were in sheets. He was also confused about this. So the construction of the ship began.