Does the Tree Really Fall Without You?

Imagine you have a favorite toy. When you put it in your closet and close the door, does it stop existing? Most people think toys stay there even when they cannot see them.

Your eyes send pictures to your brain. This is sensory input. But just because you do not see something, does that mean it disappears?

When you sleep, your eyes are closed. You hear snoring or traffic sounds. These things keep going even though you are dreaming. A tree falling in the forest makes noise. That sound wave pushes against the air all around it.

Think about a video game character. When you turn off the screen, does the character vanish? No, their world still exists inside the computer. The reality stays even without us looking at it.