That's why I said atom, not atoms. Decoherence won't allow big things like trees and houses to exhibit the same behavior. But you can easily find evidence of superpositioning atoms in your everyday life.

If you look real close to a window pane, you may be able to see your reflection in the glass. But if light is made of photons, and each photon is identical, how come some of them go through the glass, and some bounce back? Shouldn't they all go through or all go back? The most acclaimed explanation so far is that when a photon hits the glass it BOTH goes through AND comes back, similar to a ripple in the sea hitting a rock, creating two ripples one going beyond the rock and a smaller one going back. Which is why we say that light has both the properties of a particle AND a wave.