the six questions · the spine of everything

Six questions hold up everything we don't understand.

These are the questions the whole library is built to address — or, more honestly, to refuse to answer dishonestly. Below each one is where the evidence actually stands. And every claim carries its tier, so you can see exactly how good that evidence is.

every claim rated: verified credible speculative dubious
01

What is life?

Not what life does — what it actually is.

Life isn't a substance or a spark. It's a self-perpetuating informational pattern expressed through chemistry — matter that holds improbable order against entropy and encodes itself across generations. The deeper biology looks, the more “alive” turns out to mean a kind of organization rather than a kind of stuff.

  • verified
    Life appears almost the instant Earth could host it — the oldest microfossils date to ~3.43 billion years, right after the Late Heavy Bombardment ended. In 2023, NASA's OSIRIS-REx returned amino acids and water-bearing minerals from asteroid Bennu.Wacey et al. 2011; Lauretta et al., Nature 2024
  • verified
    The Last Universal Common Ancestor already ran ~355 protein families ~3.8 billion years ago — meaning a long chemical evolution we have no fossils for came first.Weiss et al., Nature Microbiology 2016
  • verified
    You are roughly half non-human by cell count (~38 trillion bacteria to ~30 trillion human cells), and about 95% of your serotonin is made in the gut. The “self” is a collective.Sender, Fuchs & Milo, Cell 2016
  • verified
    Every tissue you have feels force: the Piezo touch-and-pressure channels earned the 2021 Nobel Prize in Medicine. Life is sensory all the way down.Patapoutian et al.; Nobel Prize 2021
  • credible
    “Xenobots” — frog cells rearranged with no genetic edits — move, self-heal, and even gather loose cells into copies of themselves.Kriegman, Blackiston, Levin & Bongard, PNAS 2020–2021

Still openWhether life began once or many times, how wide its envelope runs in the universe, and whether “alive” is a sharp line or a smooth gradient.

Life isn't a kind of stuff. It's a kind of organization — software running on chemistry.
02

What is reality?

When you're not looking, what's actually there?

The honest answer is we don't know — and the most useful thing we can do is refuse to fake one. But there's a real structural finding: three fields that never talk to each other — quantum measurement, the hard problem of consciousness, and the observation of unexplained aerial phenomena — keep colliding with the same question: what is the relationship between the observer, the observation, and what becomes physically real?

  • verified
    Decoherence explains why we stop seeing quantum interference at everyday scales — but not why one specific outcome happens rather than another. The “problem of outcomes” survives every interpretation.standard quantum mechanics
  • credible
    In 2025, experiments pushed entanglement onto massive mechanical objects and revived the Wigner's-friend paradox, where two observers can each be correct about incompatible realities. Working physicists increasingly treat local realism as dead.Pikovski et al., Physical Review Letters 2025
  • verified
    John Wheeler's “delayed-choice” experiment was confirmed: deciding how to measure a photon after it has already passed through changes whether it behaved as a wave or a particle.Jacques et al., Science 2007
  • verified
    Even black holes appear to preserve information — Stephen Hawking publicly conceded the bet in 2004. Pattern seems to outlast the destruction of its substrate.Hawking–Preskill 2004; Maldacena 1997
  • verified
    On UAP, the institutional record now openly contradicts itself: the Pentagon's AARO reported “no evidence” of non-human technology in 2024, while a sworn whistleblower complaint alleging a crash-retrieval program was independently rated “credible and urgent.” The conflict is documented fact.AARO 2024; Grusch testimony 2023
  • speculative
    The underlying crash-retrieval claim itself remains unverified — second-hand testimony, no public physical evidence. We log it at its tier and leave it there.Grusch testimony 2023

Still openWhether reality is fundamentally physical, informational, computational, or conscious — and whether the observer is doing something or merely recording. We won't pretend it's settled in either direction.

Local realism is definitively dead.— the working consensus after the 2025 entanglement results
03

What is consciousness?

Why is there something it's like to be you?

We do not know whether consciousness is fundamental or emergent — both positions reach past the evidence. What we can say with confidence: the experience is real, it's gated by identifiable physiology, and the “hard problem” of why any of it feels like anything at all is still wide open.

  • verified
    We can now measure the presence of consciousness with over 95% accuracy across 208 cases — sleep, anesthesia, coma, locked-in — using a brain-complexity index. But measuring when it's there tells us nothing about what it is.Casali et al., Science Translational Medicine 2013
  • credible
    A landmark pre-registered contest between the two leading theories — Integrated Information Theory vs. Global Workspace — ended in 2025 with neither confirmed and both contradicted on specific predictions.Ferrante et al., Nature 2025 (COGITATE)
  • credible
    In 2023, 124 researchers signed a letter calling Integrated Information Theory “pseudoscience” — and were immediately, publicly rebutted by Christof Koch and Anil Seth. The live fight itself is the honest picture.2023 open letter; Koch & Seth responses
  • verified
    A Venus flytrap counts: it needs two trigger-hair signals within ~30 seconds before it closes. Real computation, no neurons at all.Böhm et al., Current Biology 2016
  • verified
    Flatworms made two-headed by briefly disrupting their bioelectric field keep regenerating as two-headed — with unchanged DNA. The body plan is stored in voltage, not only in genes.Levin lab; Durant et al. 2017
  • credible
    The first rigorous framework for AI consciousness (2023) checks 14 indicators drawn from 5 theories, concludes today's systems aren't conscious — but finds no obvious barrier to building one.Butlin et al. 2023

Still openWhether qualia are generated by the brain or filtered through it, whether consciousness needs new physics, and whether non-biological systems can have it.

A test that separates panpsychism from emergence would change everything. Anyone selling either as settled is overreaching the evidence — including us, if we ever do.
04

Where did we come from?

The deep past is older and stranger than the textbook.

The Out-of-Africa story is broadly right but incomplete. Two corrections are now forced by the evidence: organized, monumental human work is thousands of years older than “civilization” is supposed to be — and our family tree is messier, including whole populations we know only from the DNA they left inside us.

  • verified
    Göbekli Tepe was built around 9600 BCE — carved megaliths raised by people the textbooks call hunter-gatherers, millennia before farming or cities. Only 5–10% of it has been excavated.Schmidt, German Archaeological Institute
  • verified
    The nearby Sayburç relief is the oldest known narrative scene in the history of art.Özdoğan, Antiquity 2022
  • verified
    An entire human lineage — the Denisovans — was discovered from a single finger bone and reconstructed almost entirely from DNA. The work won the 2022 Nobel Prize in Medicine. We've even found a first-generation Neanderthal–Denisovan hybrid.Pääbo; Slon et al., Nature 2018
  • verified
    The gene that lets Tibetans thrive at altitude came from Denisovans — present in over 80% of Tibetans, under 1% of Han Chinese. The strongest known case of one human species inheriting a survival trait from another.Huerta-Sánchez et al., Nature 2014
  • credible
    Both Denisovan and West African genomes carry DNA from “ghost” populations that split off over a million years ago and have never been matched to any fossil. We don't yet know everyone we descend from.Rogers et al. 2020; Durvasula & Sankararaman 2020
  • credible
    Whether a cosmic impact triggered the Younger Dryas cold snap ~12,800 years ago is genuinely contested — a 2023 review called the impact case unsupported, while melt-glass at Abu Hureyra requires heat beyond any wildfire. The climate event is certain; its cause is not.Holliday et al. 2023; Moore et al. 2020

Still openSubmerged Ice-Age coastlines are barely investigated, the origin of agriculture is unsettled, and the identity of those ghost ancestors is unknown.

First came the temple, then the city.— Klaus Schmidt, on Göbekli Tepe
05

What is the meaning of life?

Made, not given — but not arbitrary.

There's no purpose handed down from outside the universe. But inside it, meaning is what a conscious system's organizing-against-entropy feels like from the inside — and the rules for how conscious beings flourish together turn out to be real and discoverable. Cultures with no contact keep finding the same core.

  • verified
    A 2019 study of 60 societies found seven moral rules — help your family, help your group, return favors, be brave, defer fairly, share, respect property — endorsed by all 60, with no exceptions.Curry, Mullins & Whitehouse, Current Anthropology 2019
  • credible
    The sense of fairness runs deeper than humans: capuchin monkeys refuse a reward when a partner gets a better one for the same task.Brosnan & de Waal, Nature 2003
  • verified
    Egypt's code of Ma'at — over 4,000 years old — already included “I have not polluted water,” an environmental ethic millennia before the movement existed.Book of the Dead, ~1550 BCE
  • verified
    Our moral judgments fire first as fast emotional intuitions; reasoning mostly arrives afterward to justify them.Haidt, Moral Foundations Theory
  • credible
    The Eleusinian Mysteries ran for nearly 2,000 years, and the same three-stage initiation — separation, ordeal, return — appears in over 100 cultures. The transformation needed the ordeal, not just the lesson.van Gennep 1909; Turner 1969

Still openWhether that shared moral core is evidence of something real or just of shared human wiring — and whether minds unlike ours would arrive at the same one.

I am because we are.— Ubuntu: a person is a person through other persons
06

Where are we going?

The unflinching version, not the comfortable one.

The next century looks like the most dangerous in our species' history — not because any single threat is new, but because four civilization-scale risks are live at once, while the institutions meant to coordinate a response are losing trust, some of it deservedly. History's lesson is blunt: complex, connected systems don't decline gently. They cascade.

  • verified
    Three civilization collapses — the Younger Dryas, the Bronze Age, the Justinianic plague — had three different triggers and the same shape: interconnected systems crossed a fragility threshold and failed nonlinearly, surprising the people inside them.corpus ID3 synthesis
  • verified
    The Bronze Age world fell during the worst drought the southern Levant had seen in 3,500 years. Among the records of that era: history's first documented labor strike, 1158 BCE.Langgut, Finkelstein & Litt 2013
  • credible
    As of 2023, six of nine planetary boundaries have been crossed. Geologists formally proposed naming our epoch the Anthropocene — then voted it down in 2024, while affirming the underlying damage.Richardson et al., Science Advances 2023; IUGS 2024
  • verified
    Microplastics are now documented in human blood, lungs, stool, and placenta — found on both the maternal and the fetal side.Leslie 2022; Ragusa 2021; Schwabl 2019; Jenner 2022
  • verified
    DNA synthesis fell from about $10 to $0.05 per base in two decades — putting genome-scale engineering within reach of small actors.corpus R5 synthetic-biology review
  • credible
    A 2022 survey of 738 AI researchers put the median odds of an “extremely bad” outcome from advanced AI at 5–10% — a minority view, but one held by several of the field's founders. Others call the framing premature, or a distraction from present harms.Grace et al. 2022; cf. LeCun; Gebru & Bender
  • verified
    And we resist warnings on purpose: more education and numeracy can amplify, not reduce, motivated reasoning on identity-laden topics.Kahan et al.

Still openWhich risk moves first, where the real threshold sits, and whether institutions can reform in time. The choice left isn't continuity versus change — it's graceful adaptation versus catastrophic.

Different triggers; same societal physics.

These six questions organize 3,632 documents across 34 fields — ancient wisdom and modern science, every claim rated by the evidence behind it. The research behind each answer is being opened up.