Science confirms it; we are 99.9999% empty space. My hand cannot pass through the wall because the electrons are vibrating at such frequency to prevent it. Solidity originates in the mind, reality is inside our head and we are inside this reality.

Morpheus to Neo: What is real?

When a tree falls in woods, does it make a sound if there's no one around to hear it?
Air compression waves yes but without a mind to receive and convert to an electrical signal in the mind?

The rabbit hole is more of an electric wormhole