Here’s a live list of questions that I don’t yet know the answer to. I’ll update it as I find out the answer, or, more likely, as I just add more and more questions.

Physics

• How do electromagnetic fields work?
• Where does magnetism come from?
• Why is nuclear fusion difficult to achieve?
• How do wires transmit electricity if electrons aren’t running along through them?
• How do we know that subatomic particles exist?
• Why is it impossible to surpass the speed of light?
• Why does time pass at different speeds depending on gravity?

Chemistry

• How do you make explosives out of household chemicals?

Mathematics

• What is the P/NP problem and why is it important?
• What is Gödel’s incompleteness theorem?

Biology

• What’s the mechanism of aging?
• How do we know how DNA works?
• How do genes function?
• What are RNA precursor chemicals?

Cryptography

• How does the Diffie-Hellman key exchange work?
• What are zkSNARKs?

Computer science

• How exactly does Dijkstra’s pathfinding algorithm work?
• What even is a Turing machine?

Philosophy

• What is sentience?

Engineering

• How do RFID readers work?
• How do semiconductors work and why are they important?