Repost: How was Zod powered in Smallville?

The Man Of Steel Answer Insight Commentary (MOSAIC) Podcast Episode 6 covers this topic in more depth.

MOS Kryptonian super powers are powered entirely by Earth’s Sun (this includes sensory abilities). That is the only mandate on having their powers. Thus their powers can persist in a vacuum, underwater, in an oil rig fire (which isn’t normal Earth atmosphere), or in all the environments in between Earth and space.

Jor-El describes this using the metaphor of “drinking” and like water, you aren’t only hydrated while you are drinking the water. You can also store the drink in your body to keep you hydrated while not drinking. This means Superman can exhibit powers even when not in direct sunlight.

Thus, a more apt metaphor is of a laptop with a removable battery and a power plug. The laptop will run on either battery, or plug, or both… but not neither.

The Kryptonian Atmosphere acts to unplug (but not drain!) the battery. Additionally, space ships are shielded against radiation. Therefore, being exposed to Kryptonian Atmosphere disconnected his battery and being on the Black Zero unplugged his power cord. So Superman lost his strength. After the Kryptonian Atmosphere was replaced (either by Earth Atmospherics OR vacuum), Superman’s battery was reconnected and thus his strength immediately returned. He was NOT empowered by Earth’s Atmosphere (otherwise vacuum would have weakened him). As for what Zod and company were breathing on Earth, we can’t be certain, but even if they were breathing Kryptonian Atmosphere, they would still have power in the form of direct sunlight or a power cord (irrespective of a disconnected battery).

This theory is fully consistent with the entire film and the Podcast reconciles every instance (including the helmets and sensory “weakness”; and Superman briefly losing flight while fighting the World Engine) except one panel of the Prequel comic (but also explains why that example can be excluded).

As for why, mechanically, Kryptonian Atmosphere weakens Superman, it’s a combination of two general factors: 1) He has organs that work; 2) It’s a biochemical reaction.

We know Superman tends to follow biological rules for a number of reasons, not the least of all is how Zod is stopped. Additionally, even with all his powers, it is likely that Clark still biochemically reacts with the world: he drinks beer while watching football, implying that it is reacting with his body so that he can taste it. It is unlikely that Kryptonian Atmosphere is radiological simply because of how much was spewed into the air and Lois’s exposure to it.

Therefore, it is possible that in breathing in the Kryptonian atmosphere, it reacts biochemically with his lungs and interferes with the organ or process that allows him to metabolize and access his stores of solar energy. Just as sour may cause you to involuntarily pucker, bitter to gag, spicy to pant, Superman’s reaction to “tasting” Kryptonian air was temporary weakness.

Under this theory, if Superman had held his breath the entire time he was on the Black Zero, he would have been fine… but he also wouldn’t have been able to speak and he would have had no reason to think to do so. Additionally, it’s likely he would have eventually adapted. He did, nominally, in the sense that he didn’t remain passed out and coughing, but merely powerless.

These are gone into more depth in Episode 7.

“Reposts” are republication of informal forum replies addressing relevant topics but not up to typical site standards.

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