Can something exist without being perceived?
Can we assume the unobserved world functions the same as the observed world?
What is the difference between what something is, and how it appears?
Isn't there ever a time when how you look doesn't affect how you're judged?
Yes, it makes the sound of a normal falling tree and I'm pretty sure a few wild animals heard it.
No one heard it. But the sound is there. Our ears don't create the sound, they just perceive it. If the whole humanity was blind, light would still exist, although unknown to us.
This philosophy reminds me of what kids do when they close their eyes and expect something that exists to disappear magically.