This is presented in a series of three diagrams, taken from Jantsch’s book. (See the end of this essay.)

In the first diagram (his Figure 24 on this page), as in the others, there are two branches: the micro-evolution branch at the bottom and the macro-evolution branch at the top. While (after the Big Bang) elementary particles, light nuclei, and light atoms (hydrogen and helium) are forming, heavy nuclei and atoms form later in dying first-generation stars, and molecules and crystals form on planets, all this along the micro-branch, other events are occurring along the macro-branch: galaxy clusters first condense, then within them (in succession) galaxies, stellar clusters, stars, planets, and rocks as solid constituents of (at least some) planets. Thus successively larger structures form from the very small ones along the micro-branch, while successively smaller structures form from very large ones along the macro-branch. Crystals and rocks, the end members of the two series, meet and converge on a planet like Earth.

Meanwhile, at the very beginning after the Big Bang, the four fundamental forces (gravitation, electromagnetic, weak nuclear, and strong nuclear) separate from each other, and exert effects on both the macro-branch (mainly gravitation) and the micro-branch (mainly strong and weak nuclear forces); near the convergence of the two branches, the electromagnetic force becomes dominant, in the form of chemical effects. There are crosslinks between the micro- and macro-branches, in that heavy nuclei form only in dying stars, while molecules, crystals and rocks form only at the intermediate temperatures prevailing on Earth-like planets at the convergence of the two branches. (Not too hot like star interiors, not too cold like interstellar or intergalactic space, but “just right” according to Goldilocks.)
The arrow of time appeared in the macro-branch by the expansion of the Universe. In the micro-branch, the arrow of time appeared in the operation of statistical mechanics of atoms and molecules, ruled by chance and probability. This was reflected in larger structures made up of these molecules, where the arrow of time appeared in the irreversibility of the processes of thermodynamics.

The second diagram (Jantsch’s Figure 28 on this page) is a continuation of the first diagram, a magnification of the “nose” at the right. It represents the convergence of smaller macro-structures and larger micro-structures, at the dimensions between a planet and its life-forms, no longer the whole universe. The longest vertical link is between planetary chemistry (geo-chemistry) and pre-biotic dissipative structures (incipient bio-chemistry). The next vertical link is between the Gaia system (by which Jantsch means the oxygen – carbon dioxide balance maintained in steady state by photosynthesis and respiration) and prokaryote bacteria, mainly the blue-greens or cyanobacteria and other bacteria. The third vertical link is between heterotrophic ecosystems (food chains based on plants as primary energy producers) and eukaryotes (protozoa, fungi, plants and animals). The fourth vertical link is between societies (e.g. of ants, bees, or humans) and multicellular animals evolved in or after the “Cambrian explosion”. The fina1link is between small groups or families, and individual animals; this last step closes the convergence at this level. There is a third arrow of time now – that of genetic information transmitted across generations.

The third diagram (Jantsch’s Figure 32 on this page) is again a continuation of diagram 2, extending it even further to the right. It depicts the transition from the socio-biological to the socio-cultural phase of evolution. According to Jantsch, the transition turns things upside down, the previous micro-branch becoming the new macro-branch. At this new macro-level, human persons are linked first of all to families (as in the last link of the previous diagram), then to successively larger structures: societies, ecosystems-cultures, and planet-humankind. The arrow of time is accentuated now by the cultural transmission of knowledge from one generation to the next.

There is a fourth diagram, which tries to put it all together, but it is confusing, because it tries to say too much. It is omitted here.

These three diagrams may be seen as a “zoom-in” on ever-finer details of the same overall structure. There should be further diagrams which delve into ever-deeper levels of the macro-micro convergence, which Jantsch also calls coevolution. This may be a never-ending fractal sequence, or else it may end in a Teilhardian Omega Point.

Fig. 24. Cosmic co-evolution of macro- and microstructures. The asymmetrical unfurling of the four physical forces calls into play step by step new structural levels, from the macroscopic side as well as from the microscopic. These levels mutually stimulate their evolutions.

Fig. 28. The history of life on earth expresses the co-evolution of self-organizing macro- and microsystems in ever higher degrees of differentiation.

Fig. 32. The transition from the sociobiological to the sociocultural phase of evolution turns things upside down, as far as the dominant relationships in the co-evolution of macro- and microsystems are concerned. Self-reflexive mind, characterizing the individual at the level of consciousness of a person, sets out to recreate the macroworld. The dotted arrows indicate that, at the levels of culture and mankind-at-large, this is still a partially conscious process only.