“The traditional “cosmological” Multiverse considers that there might be physical realms inaccessible to us due to their separation in space-time. The quantum Multiverse arises from entities that occupy the same space-time, but are distant in Hilbert space – or in the jargon, decoherent.”

— Frank Wilczek

"Multiversality" (2013)

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Frank Wilczek 49

physicist 1951

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“He existed in all the many dimensions of the multiverse. Yet he, in common with all others, was bound by the dimension of Time. He had cast off the chains of space but was tied, as perhaps all denizens of the multiverse would always be, by the imperturbable prowl of Time, which brooked no halt, which condoned no tampering with its movement, whether to slow it or to speed it.
Time, the changer, could not be changed. Space, perhaps, the material environment, could be conquered. Time, never.”

Michael Moorcock (1939) English writer, editor, critic

Source: The Sundered Worlds (1965), Chapter 15 (p. 290)

“Quantum phenomena do not occur in a Hilbert space. They occur in a laboratory.”

Asher Peres (1934–2005) Israeli physicist

[Asher Peres, Quantum theory: concepts and methods, Springer, 1995, 0792336321, 373]

“Third, this allowed us to propose what we called the cosmological interpretation of quantum mechanics. Here we interpret the wavefunction for an object as describing not some funky imaginary ensemble of possibilities for what the object might be doing, but rather the actual spatial collection of identical copies of the object that exist in our infinite space. Moreover, quantum uncertainty that you experience simply reflects your inability to self-locate in the Level I multiverse, i. e., to know which of your infinitely many copies throughout space is the one having your subjective perceptions.”

Max Tegmark book Our Mathematical Universe

Our Mathematical Universe: My Quest for the Ultimate Nature of Reality (2014)

“A common habit of thought… is the idea that space is [a] simple receptacle in which bodies move around, with no two bodies present at the same point. …In modern quantum physics generally, and in the standard model of fundamental physics in particular, physical space appears as a far more flexible framework. Many kinds of particles can be present at the same point in space at the same time. Indeed, the primary ingredients of the standard model are not particles at all, but an abundance of quantum fields, each a complex object in itself, and all omnipresent.”

Frank Wilczek (1951) physicist

"Multiversality" (2013)

“For tribal man, space was the uncontrollable mystery. For technological man it is time that occupies the same role.”

Marshall McLuhan (1911–1980) Canadian educator, philosopher, and scholar-- a professor of English literature, a literary critic, and a …

Source: 1950s, The Mechanical Bride (1951), p. 85; "Magic that Changes Mood")

“At the most elemental level, reality evanesces into something called Schröedinger's Wave Function: a mathematical abstraction which is best represented as a pattern in an infinite-dimensional space, Hilbert Space. Each point of the Hilbert Space represents a possible state of affairs. The wave function for some one physical or mental system takes the form of, let us say, a coloring in of Hilbert Space. The brightly colored parts represent likely states for the system, the dim parts represent less probable states of affairs.”

Rudy Rucker (1946) American mathematician, computer scientist, science fiction author and philosopher

Source: The Sex Sphere (1983), p. 133-134

“We may… be treating merely as physical variations effects which are really due to changes in the curvature of our space; whether, in fact, some or all of those causes which we term physical may not be due to the geometrical construction of our space. There are three kinds of variation in the curvature of our space which we ought to consider as within the range of possibility.”

William Kingdon Clifford (1845–1879) English mathematician and philosopher

Clifford & Pearson, Ch IV, Position, §19 On the Bending of Space
The Common Sense of the Exact Sciences (1885)
Context: We may... be treating merely as physical variations effects which are really due to changes in the curvature of our space; whether, in fact, some or all of those causes which we term physical may not be due to the geometrical construction of our space. There are three kinds of variation in the curvature of our space which we ought to consider as within the range of possibility.
(i) Our space is perhaps really possessed of a curvature varying from point to point, which we fail to appreciate because we are acquainted with only a small portion of space, or because we disguise its small variations under changes in our physical condition which we do not connect with our change of position. The mind that could recognise this varying curvature might be assumed to know the absolute position of a point. For such a mind the postulate of the relativity of position would cease to have a meaning. It does not seem so hard to conceive such a state of mind as the late Professor Clerk-Maxwell would have had us believe. It would be one capable of distinguishing those so-called physical changes which are really geometrical or due to a change of position in space.
(ii) Our space may be really same (of equal curvature), but its degree of curvature may change as a whole with the time. In this way our geometry based on the sameness of space would still hold good for all parts of space, but the change of curvature might produce in space a succession of apparent physical changes.
(iii) We may conceive our space to have everywhere a nearly uniform curvature, but that slight variations of the curvature may occur from point to point, and themselves vary with the time. These variations of the curvature with the time may produce effects which we not unnaturally attribute to physical causes independent of the geometry of our space. We might even go so far as to assign to this variation of the curvature of space 'what really happens in that phenomenon which we term the motion of matter.' <!--pp. 224-225

“My real speciality is the mathematical analysis of Hilbert Space operators. But this was no time to come on like an ivory-tower idealist.”

Rudy Rucker (1946) American mathematician, computer scientist, science fiction author and philosopher

Source: The Sex Sphere (1983), p. 18

“The point, being indivisible, occupies no space. That which occupies no space is nothing.”

Leonardo Da Vinci (1452–1519) Italian Renaissance polymath

The Notebooks of Leonardo da Vinci (1883), II Linear Perspective
Context: The point, being indivisible, occupies no space. That which occupies no space is nothing. The limiting surface of one thing is the beginning of another.

“The new architecture considers not only space, but also time to be an architectural value. The unity of space and time will give architecture a new form of appearance, which is more complete. This is what is meant by 'active space'.... the dissimilar space-cells develop eccentrically from the center to the borders of the cube, thereby granting a new plastic quality to the dimensions of height, width, depth, and time.”

Theo van Doesburg (1883–1931) Dutch architect, painter, draughtsman and writer

Quote from his unpublished writing, 'Fundamental principles', 1930; as cited in Theo van Doesburg, Joost Baljeu, Studio Vista, London 1974, p. 203
1926 – 1931

“The traditional “cosmological” Multiverse considers that there might be physical realms inaccessible to us due to their separation in space-time. The quantum Multiverse arises from entities that occupy the same space-time, but are distant in Hilbert space – or in the jargon, decoherent.”

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Frank Wilczek 49

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