A used light with greater energy and shorter wavelengths.
B used light with less energy and longer wavelengths.
The former was impossible. No matter how high the energy of light was, even if a single photon carried the energy of an asteroid, it still could not penetrate the Earth. At most, it would strike the atmosphere and trigger massive, intense cascading particle showers. By the time those showers reached the surface, they would be too weak to harm even something as fragile as an individual human.
The latter was theoretically possible. When light had a wavelength longer than the Earth's diameter, it could pass through the Earth. It was just that such light carried far too little energy.
Infinite Tsukuyomi could not kill humans; it could not even harm human skin. Therefore, it could not be possibility A.
In other words.
Infinite Tsukuyomi was actually possibility B: light with less energy and longer wavelengths.
Among visible light.
Red light had the longest wavelength.
In the Naruto Ninja TV anime, aside from white light, the production team had also added red light to Infinite Tsukuyomi's glow.
It could be said that this was highly scientific.
So...
The red clouds in the sky were Mingren's second solution!
A thousand years ago, Sage Katsuyu had experienced Infinite Tsukuyomi.
Thus, her experience could be used as a reference to create red light with the corresponding wavelength.
Dark Chakra was actually a form of light as well.
And it could alter its spectrum according to changes in emotion.
Mingren, who had gained Dark Power in the Limited Tsukuyomi world when facing Uzumaki Menma, had already accomplished this.
Sasuke's Susanoo appeared purple and likewise possessed the properties of light.
Therefore, Sasuke's method of resisting Infinite Tsukuyomi was "the collision and cancellation of electromagnetic waves between light