““Real systems are, in this sense, "excitations of the vacuum"- much as surface waves in a pond are excitations of the pond's water. Just as the properties of water determine what amplitude and speed the waves are permitted, so the properties of the physical vacuum to find the possible excitations-the possible systems that can emerge from the physical vacuum. Water, just like the vacuum, contains the final reality as an initial possibility. The vacuum in itself is shapeless, but it may assume specific shapes: in so doing, it becomes a physical reality, a "real world.””
![“Today the vacuum [of space] is not regarded as empty. It is a sea of dynamic energy, like the spray of foam near a turbulent waterfall.” quote by Harold E. Puthoff](https://sms4smile.com/quotes/img-quotes/103/harold-e-puthoff-96459_empty_today-the-vacuum-of-space-is-not-regarde_1110228.jpg)
![“[In science any model depends on a pre-chosen taxonomy] a set of classifications into which we divide the enormous complexity of the real world... Land, labor, and capital are extremely heterogeneous aggregates, not much better than earth, air, fire, and water.” quote by Kenneth E. Boulding](https://sms4smile.com/quotes/img-quotes/47e/kenneth-e-boulding-3728_air_in-science-any-model-depends-on-a-pre-ch_12383.jpg)
