V A E Llibrary

Complexity

The research question of VAEL is simple to ask and hard to answer: left alone, how far does an evolving world climb? This page is the ladder we use. Every step has a measure taken from the world's own data, a threshold fixed in advance, and a note on what the measure does not prove.

steps reached1 of 7
living creatures118
generations15
StepQuestionWhat we measureNow
ReflexDo the creatures respond to the world well enough to stay alive and reproduce?generations since the beginning15reached
Reached at 10 generations. It shows that behaviour is good enough to survive, not that anything is understood.
Signals that carry informationDoes a call say something about what is happening (food, danger, an invitation)?information shared between a call and its situation, in bits (best of three, last readings)0.000not yet
Reached at 0.05 bits. A call can be informative without anyone intending to inform.
Learning within one lifeDoes a creature change what it does because of what happened to it, not only because of its genes?share of living creatures holding a learned link between a call and food or harm; mean change of the plastic connections in the growing brain0% · 0.000not yet
Reached when one creature in five holds a learned link. What is learned dies with the creature: only the ability to learn is inherited.
CultureDo habits pass between creatures that are not parent and child, and do groups differ because of it?creatures singing a song copied from another; information in the dialects (bits); places with a name0 · 0.344 · 0not yet
Reached when one creature in ten sings a copied song and either dialects carry information or a place has a name. Copying is not the same as teaching.
A food web of its ownWithout anyone adding predators, do some creatures come to live on others?share of living creatures that are mostly meat eaters · share that eat both0% · 20%not yet
Reached when one creature in twenty lives mostly on meat. Many meat eaters feed on carcasses rather than hunt.
Brains that growGiven the freedom to add neurons at a cost, does evolution use it?share of creatures with extra neurons · largest number of extra neurons in one brain27% · 2not yet
Reached when a quarter of the creatures carry extra neurons and one brain has at least eight. A bigger brain is not a smarter one: it only costs more.
SymbolsDoes a call stand for something that is not there, such as a place or a creature out of sight?not measured yet—not measured
We do not have an honest measure for this. It stays on the list as the open question of the project.

The thresholds are conventions, written down before looking at the results so that they cannot be bent afterwards. A step can be lost again: the page is rewritten every hour from the living world. Nothing here is steered: no language model touches the simulation or the genomes.