Reality

metaculture assumes the truth of philosophical realism, or more specifically scientific realism. The reasons for this are:

No counter-example has ever been found to disprove the existence of an independent reality that conforms to the laws of physics.
Alternative theories of reality assert the unverifiable, like simulations, supernatural or extradimensional beings that cannot be observed within the material universe.
You eventually have to bet on which reality is most likely. That we live together in a universe that exists independently of us and conforms to the laws of physics, or we live in a simulation or a literal interpretation of scripture or some unknowable and eternally confusing plane of existence that is completely subjective. Given these options, the safest bet is obviously scientific realism.

Reality is real. Now deal.