Many scientists kept using scientific arguments and burning up their own lives, until most people finally accepted the idea that the planet beneath our feet is a sphere.
In the process of persuading people, many of them mentioned that when you observe the sea's surface, the first thing that appears in your field of vision must be the highest point of a ship—maybe the top of the mast, or a sailor standing on the lookout platform staring at you through a telescope.
Only then can you gradually see more of the hull, so the surface of the water is not flat, but an arc.
So when the warship first began to appear within the fishing boat's visual range, they actually couldn't see anything at all.
But as the warship drew closer and closer, they could already see it clearly.
The two of them stood dumbly on the swaying deck, the engine turning as the net drew tighter and tighter, until the net couldn't withstand the continuously increasing tension and snapped with a burst of force.
