Unknown OceansSunlight zoneSurfaceTwilight zoneShallowsMidnight zoneDeepAbyssal zoneAbyssHadal zoneUnknown

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The map

Every question, and what it touches.

Questions sit at the depth of their uncertainty. Choose one and you can see everything it touches. Horizontally they drift toward the oceans they belong to, and a line between two of them means each names the other as related. That is the only thing a line here says: it is not one of the routes, which are an order somebody chose and are read somewhere else.

Surface

0 to 200 m

Things we understand reasonably well.

Shallows

200 to 1,000 m

Interesting questions with substantial evidence and real uncertainty remaining.

Deep

1,000 to 4,000 m

Major unanswered questions.

Abyss

4,000 to 6,000 m

Fundamental questions where our understanding is extremely limited.

Unknown

6,000 to 11,000 m

Questions where we may not even know what an answer would look like if we found one.

Depth runs down the page. Select a question to see what connects to it. Horizontal grouping follows the oceans.

Every question and what it connects to

Grouped by ocean, then by depth. This is the same set of relationships the map draws.

Ocean of Life

Sunlight zone, 0 to 200 m

Twilight zone, 200 to 1,000 m

Midnight zone, 1,000 to 4,000 m

Abyssal zone, 4,000 to 6,000 m

What lives where sunlight never reaches?Leads to

Ocean of Mind

Sunlight zone, 0 to 200 m

Twilight zone, 200 to 1,000 m

Midnight zone, 1,000 to 4,000 m

Abyssal zone, 4,000 to 6,000 m

Hadal zone, 6,000 to 11,000 m

What happens when you die?Leads to

Ocean of Space

Sunlight zone, 0 to 200 m

Where did gold come from?Leads to

Twilight zone, 200 to 1,000 m

Midnight zone, 1,000 to 4,000 m

Abyssal zone, 4,000 to 6,000 m

Hadal zone, 6,000 to 11,000 m

Why is there anything at all?Leads to

Ocean of Time

Sunlight zone, 0 to 200 m

How did people reach the Pacific islands?Leads to

Twilight zone, 200 to 1,000 m

Midnight zone, 1,000 to 4,000 m

Ocean of Reality

Sunlight zone, 0 to 200 m

Can everything be computed?Leads to

Twilight zone, 200 to 1,000 m

Midnight zone, 1,000 to 4,000 m

Abyssal zone, 4,000 to 6,000 m

Hadal zone, 6,000 to 11,000 m

Why is there anything at all?Leads to

Ocean of Earth

Sunlight zone, 0 to 200 m

What killed the dinosaurs?Leads to

Twilight zone, 200 to 1,000 m

Midnight zone, 1,000 to 4,000 m

Abyssal zone, 4,000 to 6,000 m

What lives where sunlight never reaches?Leads to

Ocean of Faith

Sunlight zone, 0 to 200 m

Why are there so many kinds of Christianity?Leads to

Twilight zone, 200 to 1,000 m

Midnight zone, 1,000 to 4,000 m

Did Jesus say he was God?Leads to
- What did Jesus actually teach?
- What happened after the crucifixion?
- What was decided at Nicaea?
- Where did the Trinity come from?
- Who wrote the Gospels?
- Why do the Gospels tell it differently?
Did Paul invent Christianity?Leads to
- What did the earliest Christians actually do?
- What did women do in the early church?
- What happened after the crucifixion?
- When did Christianity stop being Jewish?
Did the Exodus happen?Leads to
- How close is today’s Bible to its earliest copies?
- How much of human history has been lost?
- Who decided which books became the Bible?
- Why does the Christian Bible contain someone else’s scriptures?
Did the first Christians expect the world to end?Leads to
- What did Christianity do about slavery?
- What did Jesus actually teach?
- What happens when you die?
- Where did hell come from?
- Who decided which books became the Bible?
- Why do translations of the Bible disagree?
How did a persecuted sect become the empire’s religion?Leads to
- Did Christianity invent charity?
- Is Christianity growing or shrinking?
- What did Christians think about war?
- What did the ancient world write about Jesus?
- What did the earliest Christians actually do?
- What did the missions do to the people they reached?
- What was decided at Nicaea?
- What were the Crusades actually about?
- When did Christianity stop being Jewish?
- Where did the papacy come from?
- Why are there so many kinds of Christianity?
What did Christianity do about slavery?Leads to
- Did Christianity invent charity?
- Did the first Christians expect the world to end?
- What did Christians think about war?
- What did the earliest Christians actually do?
- What did the missions do to the people they reached?
- What did women do in the early church?
- What were the inquisitions?
- Why are there so many kinds of Christianity?
- Why do churches disagree about marriage?
- Why do translations of the Bible disagree?
What did Jesus actually teach?Leads to
- Did Jesus say he was God?
- Did the first Christians expect the world to end?
- Does prayer do anything?
- What did Christians think about war?
- Why do the Gospels tell it differently?
- Why was Jesus executed?
What did the ancient world write about Jesus?Leads to
- How did a persecuted sect become the empire’s religion?
- How much of human history has been lost?
- What did we build before we had cities?
- What happened after the crucifixion?
- What happened to the people who knew him?
- Who decided which books became the Bible?
- Who wrote the Gospels?
- Why was Jesus executed?
What did women do in the early church?Leads to
- Did Paul invent Christianity?
- How close is today’s Bible to its earliest copies?
- What did Christianity do about slavery?
- What did the earliest Christians actually do?
- Why are there so many kinds of Christianity?
- Why do churches disagree about marriage?
- Why do translations of the Bible disagree?
What does Christianity mean by faith?Leads to
- Could a miracle ever be evidence?
- Does prayer do anything?
- What about people who never heard any of it?
- What do Christians mean when they say the Bible is true?
- What happened after the crucifixion?
What happened to the gospels that were left out?Leads to
- How much of human history has been lost?
- Who decided which books became the Bible?
- Who wrote the Gospels?
What happened to the people who knew him?Leads to
- What did the ancient world write about Jesus?
- What did the earliest Christians actually do?
- What happened after the crucifixion?
What happens at communion?Leads to
- What did the earliest Christians actually do?
- What do Christians mean when they say the Bible is true?
- Where did the papacy come from?
- Why are there so many kinds of Christianity?
- Why did Christians fight about pictures?
What was decided at Nicaea?Leads to
- Did Jesus say he was God?
- How did a persecuted sect become the empire’s religion?
- Where did the papacy come from?
- Where did the Trinity come from?
- Who decided which books became the Bible?
- Why are there so many kinds of Christianity?
- Why did Christians fight about pictures?
What were the Crusades actually about?Leads to
- How did a persecuted sect become the empire’s religion?
- What did Christians think about war?
- What were the inquisitions?
- When did Christianity stop being Jewish?
- Why are there so many kinds of Christianity?
When did Christianity stop being Jewish?Leads to
- Did Christianity invent charity?
- Did Paul invent Christianity?
- How did a persecuted sect become the empire’s religion?
- What did the earliest Christians actually do?
- What were the Crusades actually about?
- Why does the Christian Bible contain someone else’s scriptures?
- Why was Jesus executed?
Where did hell come from?Leads to
- Did the first Christians expect the world to end?
- What about people who never heard any of it?
- What happens when you die?
- Where did the devil come from?
- Why do translations of the Bible disagree?
- Why does a good God allow suffering?
Where did the devil come from?Leads to
- What happens when you die?
- Where did hell come from?
- Why do translations of the Bible disagree?
- Why does a good God allow suffering?
Where did the papacy come from?Leads to
- How did a persecuted sect become the empire’s religion?
- What did the earliest Christians actually do?
- What happens at communion?
- What was decided at Nicaea?
- Why are there so many kinds of Christianity?
Where did the Trinity come from?Leads to
- Did Jesus say he was God?
- What was decided at Nicaea?
- Why are there so many kinds of Christianity?
- Why did Christians fight about pictures?
Who decided which books became the Bible?Leads to
- Did the Exodus happen?
- Did the first Christians expect the world to end?
- How close is today’s Bible to its earliest copies?
- How much of human history has been lost?
- What did the ancient world write about Jesus?
- What did the earliest Christians actually do?
- What do Christians mean when they say the Bible is true?
- What happened to the gospels that were left out?
- What was decided at Nicaea?
- Who wrote the Gospels?
- Why are there so many kinds of Christianity?
- Why does the Christian Bible contain someone else’s scriptures?
Who wrote the Gospels?Leads to
- Did Jesus say he was God?
- What did the ancient world write about Jesus?
- What happened to the gospels that were left out?
- Who decided which books became the Bible?
- Why do the Gospels tell it differently?
Why did Christians fight about pictures?Leads to
- What happens at communion?
- What was decided at Nicaea?
- What were the inquisitions?
- Where did the Trinity come from?
- Why are there so many kinds of Christianity?
Why do churches disagree about marriage?Leads to
- What did Christianity do about slavery?
- What did women do in the early church?
- Why are there so many kinds of Christianity?
- Why do translations of the Bible disagree?
Why do the Gospels tell it differently?Leads to
- Did Jesus say he was God?
- How close is today’s Bible to its earliest copies?
- What did Jesus actually teach?
- What do Christians mean when they say the Bible is true?
- What happened after the crucifixion?
- Who wrote the Gospels?
- Why was Jesus executed?
Why does the Christian Bible contain someone else’s scriptures?Leads to
- Did the Exodus happen?
- How close is today’s Bible to its earliest copies?
- When did Christianity stop being Jewish?
- Who decided which books became the Bible?

Abyssal zone, 4,000 to 6,000 m

Could a miracle ever be evidence?Leads to
- Does prayer do anything?
- What actually happens when we look?
- What does Christianity mean by faith?
- What happened after the crucifixion?
- Why does a good God allow suffering?
What about people who never heard any of it?Leads to
- What does Christianity mean by faith?
- What happens when you die?
- Where did hell come from?
- Why are there so many kinds of Christianity?
What happened after the crucifixion?Leads to
- Could a miracle ever be evidence?
- Did Jesus say he was God?
- Did Paul invent Christianity?
- How close is today’s Bible to its earliest copies?
- What did the ancient world write about Jesus?
- What does Christianity mean by faith?
- What happened to the people who knew him?
- What happens when you die?
- Why do the Gospels tell it differently?
- Why does a good God allow suffering?
- Why was Jesus executed?
Why does a good God allow suffering?Leads to

Hadal zone, 6,000 to 11,000 m

What happens when you die?Leads to