# Every Force in Nature (Theory of Everything, Part III) | Summary and Q&A

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May 21, 2012
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minutephysics
Every Force in Nature (Theory of Everything, Part III)

## TL;DR

The measurement of value in different places leads to interactions and fundamental forces in the universe.

## Key Insights

• 🥇 Matter interacts with other matter due to the ability to measure things differently in different places.
• 💱 Currency exchange allows for the transfer of value based on measurement differences.
• ❓ Momentum transfer, caused by measurement differences, is responsible for the creation of forces in physics.
• 💦 Forces in physics work through the exchange of particles known as gauge bosons.
• 🙂 Photons, particles of light, are exchange particles that mediate the electromagnetic force.
• 💪 The electromagnetic, strong, weak, and gravitational interactions all work through the exchange of particles.
• 💱 Newton's understanding of forces could have been improved if he had known about exchange particles.

## Transcript

We know the universe has stuff in it called "matter" that takes up space. And the universe isn't just static - things happen, too! To be more precise, matter interacts with other matter, like the pull of the earth and the moon on each other, or the mutual repulsion of your feet and the ground. We might think that these interactions are just traffic... Read More

### Q: How do interactions occur in the universe?

Interactions in the universe occur because matter can measure things differently in different places, resulting in the ability to interact with other matter.

### Q: How does the measurement of value affect currency exchange?

The measurement of value, represented by money, is an arbitrary scale that allows for currency exchange between different countries with different currencies.

### Q: What is arbitrage?

Arbitrage is the process of making money from nothing by taking advantage of measurement differences and acting before the market adjusts.

### Q: How are forces created in physics?

Forces in physics are created through momentum transfer, which occurs when measurement differences between matter particles result in the transfer of value.

## Summary & Key Takeaways

• Matter interacts with other matter due to the ability to measure things differently in different places.

• The value of things, measured by money, is an arbitrary scale, resulting in the ability to transfer value through currency exchange.

• Transfer of value through measurement differences is called momentum transfer, which is the basis for forces in physics.