In this case, a Theory of the Adjacent Possible (TAP):
Biology and cosmology. Two fields that are normally thought to have nothing in common and nothing to teach each other. We — Stuart Kauffman, Andrew Liddle, Lee Smolin and I — are putting an end to this. By reformulating cosmological physics to include biological systems, we have developed a common currency with which their respective systems can be counted and compared. This ‘currency’ allows us to quantify the value of biologicals systems when set against the character cast of cosmology: galaxies, dark energy and black holes.
This synthesis of biology and cosmology required a shift away from reductionism and the belief that all systems can be understood by breaking them down into their constituent elements. Instead, the new way of thinking makes sense of complex systems and their evolution by considering the number of possible future states those systems could take.
In a technical sense, this synthesis uses the idea of a system’s expanding space of possible outcomes, which Stuart Kauffman established as the Theory of the Adjacent Possible (TAP).
Marina Cortês, “The most complex thing in the universe” at IAI.TV (April 21, 2022)
It could be a lot simpler (but where would that lead?):
Yes, the human brain is the most complex thing in the universe. But that’s not even the most remarkable thing about our brains. Our complex brains mirror the universe — 27 orders of magnitude bigger — yet some humans function with only half a brain or split brains.