...Reality includes an objective level with objective facts that don't
depend on people's beliefs.... Reality also includes a subjective
level with subjective facts like the beliefs and feelings of various
people, but in this case, too, facts can be separated from errors.
For views and feelings--just like stars and pigeons--are a part of the
universal reality.
-- Yuval Noah Harari. Nexus: A Brief History of
Information Networks.