How Bending In The Avatar Universe Works

Summary

The video proposes that bending in the Avatar universe is governed not by the state of matter—solid, liquid, gas, or plasma—but by the substance being controlled. It calls this idea the “law of substance.” Earth, water, and airbenders manipulate their respective substances in different physical forms. Firebenders are different because they control energy rather than a material substance.

Why the “four states of matter” theory fails

The theory that earth corresponds to solids, water to liquids, air to gases, and fire to plasma initially seems to fit. The video argues, however, that it breaks down when characters control materials in unexpected states:

• Earthbending: Earthbenders move solid rock, but also control sand and metal containing earth impurities. Toph’s metalbending is presented as sensing and manipulating those impurities. As a contrast, the video points to pure platinum suits: without impurities for metalbenders to grip, they cannot control them.
• Lava: Lava is liquid, yet Ghazan and Bolin control it as earthbenders. The video treats this as evidence that bending depends on what a substance is, not whether it is solid or liquid.
• Waterbending: Waterbenders can manipulate water as ice, liquid water, and vapor. Hama’s bloodbending is another example: it controls the water within living bodies.
• Mud: Because mud contains both earth and water, the video says earthbenders and waterbenders can each control their respective parts.

Connections between bending and physics

The video uses several real-world comparisons to explain bending techniques:

• Toph’s seismic sense: Toph detects vibrations through the ground. The video compares this to animals that locate prey by sensing vibrations in sand.
• Water and electricity: A charged plastic comb can attract a thin stream of water. The video presents this as a small-scale example of water responding to electric fields.
• Bloodbending and the moon: The narrator rejects the idea that the moon’s gravity physically pulls people’s blood. Instead, the full moon is described as an amplifier of waterbending. The loss of waterbending when the moon spirit is killed is offered as support, while Yakone and Amon’s ability to bloodbend without a full moon suggests that the moon is not a necessary switch.
• Airbending: The video describes airbending as control over pressure. Zaheer’s removal of air from the Earth Queen’s lungs is framed as a weaponized use of that control. His flight is explained as continually pushing air downward to counter his body weight, like a human helicopter.
• Firebending: Firebenders appear to create flames without visible fuel. The narrator suggests that they act as conduits for energy rather than generating it themselves. The sun’s influence, the loss of firebending during a solar eclipse, and the boost from Sozin’s Comet are cited as examples.
• Lightning generation: Iroh’s explanation that lightning involves separating positive and negative energy is compared to the real-world charge separation that produces lightning.

The proposed “law of substance”

The video’s central rule is that each kind of bending is tied to what is controlled, rather than to its physical state:

• Waterbenders control water in its different forms.
• Earthbenders control earth in its different forms, including lava and metal with earth impurities.
• Airbenders control the atmosphere and its pressure.
• Firebenders control energy rather than a particular kind of matter.

This framework is used to explain why a firebender can generate lightning but not move lava: lightning is energy, while lava is earth. It also explains why a material’s state does not determine who can bend it.

Predicted techniques

Using the proposed law, the narrator suggests abilities the series could have explored:

• Heat removal by firebenders: If firebenders can add heat, they might also be able to drain it—for example, freezing a puddle or making a steel sword brittle.
• Sound manipulation by airbenders: Since sound travels as pressure waves, airbenders might create sonic blasts or silence a room.
• Energybending: This is presented as a higher-order ability associated with the lion turtles. Whereas the four elemental arts control matter or energy, energybending can affect a bender’s power directly. Aang’s removal of Ozai’s firebending is given as an example.

The video ends with a brief comparison to Green Lantern: the ring is described as a conduit for power supplied by a distant battery, much as the video portrays firebenders as conduits rather than the original source of their power. The ring’s mechanics are left for another topic.

Speakers and sources featured

• Speaker: One unnamed narrator; no distinct second speaker is identified in the subtitles.
• In-universe source cited: Iroh, whose explanation of lightning generation is referenced.
• Characters and figures discussed: Toph Beifong, Varrick, Ghazan, Bolin, Hama, Zhao, Yakone, Amon, Zaheer, the Earth Queen, Aang, Ozai, and the lion turtles.
• Real-world comparisons cited: Electrical attraction of water, vibration-sensing animals, atmospheric pressure, charge separation in lightning, and Halley’s Comet.