Explain SMBC — the wiki for Saturday Morning Breakfast Cereal

The Joke

The comic depicts a group of cavemen-like characters debating about the fundamental nature of reality, mirroring the history of physics and philosophy. The progression goes:

• "Big rock is made of small rocks" (matter is composed of smaller parts)
• "But big rock behaves completely different from small rock" (emergent properties differ at different scales)
• "Small rock is made of smaller rocks" and "Smaller rock is also different" (further subdivision reveals further differences -- paralleling atoms, subatomic particles, quarks, etc.)
• They keep going deeper: "Tiny small rock!" "Any tiny small rock!" -- increasingly excited about finding the fundamental building block.
• "But small rocks go through each other?!" -- a reference to quantum tunneling, where particles can pass through barriers.
• "To collider!" -- a reference to particle accelerators used to study fundamental particles.
• The final panel shows a modern-day woman at a chalkboard saying "Professor, your paper doesn't actually say anything," and the caveman-like professor responds "But our funding!" -- suggesting that modern particle physics papers can sometimes feel like they're just restating the same reductionist approach without new insights, but the research continues because of funding incentives.

The Humor

The comic humorously compresses thousands of years of physics and philosophy of matter -- from ancient Greek atomism to modern particle physics -- into a conversation among cavemen. The escalating excitement as they discover ever-smaller "rocks" parodies how physics keeps finding new layers of fundamental particles. The punchline cuts to the modern day to suggest that despite all the sophistication, the basic intellectual program ("big things are made of smaller things, let's find them") hasn't fundamentally changed since the caveman era. The final jab about funding satirizes the "publish or perish" culture in academia, where the pressure to produce papers and secure grants can sometimes outweigh the actual substance of the research.

References

• Particle physics and reductionism: The comic traces the philosophical journey from macroscopic objects to subatomic particles, echoing the progression from classical physics to quantum mechanics.
• Quantum tunneling: The reference to "small rocks going through each other" alludes to the quantum mechanical phenomenon where particles can pass through potential energy barriers.
• Particle colliders: The "To collider!" line references facilities like CERN's Large Hadron Collider, used to smash particles together to discover fundamental constituents of matter.