Existence is fundamentally a matter of collective consensus. Even abstract concepts exist for humans. For example, many of the abstract constructs we routinely rely on in physics are genuine, real existences to us, even if they do not exist in the raw physical world. Existence is not limited to what humans can physically perceive with our bodies. In other words, the conventional understanding of so-called "reality's existence" doesn't actually align with human cognition or our proven capacity for entropy reduction.