The Titans are structurally impossible, and that impossibility is the entire point.
A creature with a torso the size of a office building balanced on legs the thickness of tree trunks should collapse under its own weight within seconds—yet Studio WIT animated it anyway, frame by frame.
The design was never about plausibility—it was about communicating a specific economic dread through a body. The Titans' proportions encode what happens when power concentrates faster than the foundation can support it.
Watch the Colossal Titan's movement in Season 1: each step trembles. The animators added micro-vibrations to the ground on every footfall, a visual stutter that reads as instability masquerading as dominance—and this isn't how a creature would move if physics permitted it; this is how debt moves through a system. The Titans don't need to feed.
The series spent three seasons asking how to kill Titans before finally revealing what the creators actually knew: systems built on disproportionate power don't need to be killed. They need to be destabilized from within.
Watch the Colossal Titan's first appearance in Episode 1, 19:30-22:15, and notice where the animation adds micro-vibrations to the ground—then compare it to how Studio WIT animates Wall Maria's actual structural failure in Season 3 Episode 16.
Read Evan Puschak's 2021 Nerdwriter1 video essay 'Attack on Titan and the Decline of Freedom' for context on how the show's architecture mirrors Japanese anxieties about generational burden, though he misses the specific role of the Titans' physics in encoding that anxiety.