The ultimate defense vs the ultimate offense — Saitama's narrative invincibility likely punches through Infinity.
Can Saitama's punch bypass Infinity? This is the most philosophically interesting matchup in the database. Infinity divides space infinitely — nothing should reach Gojo. But Saitama's punch is designed by narrative to overcome any defense.
The answer depends on which meta-rule takes precedence: JJK's mathematical impossibility or One Punch Man's comedic invincibility. In a neutral crossover, Saitama's character concept (always wins in one punch) likely overrides Infinity's mathematical defense (nothing reaches Gojo).
Gojo's Unlimited Void could potentially work — it overloads the brain with information, and Saitama IS vulnerable to boredom and mental fatigue (not damage, but discomfort). But Saitama has shrugged off reality-warping attacks through sheer narrative protection.
Infinity is a mathematical absolute that nothing should bypass. Unlimited Void overloads the target's brain. Six Eyes provide perfect awareness.
Saitama's narrative purpose is to overcome any defense with one punch. His power exists outside conventional scaling. The meta-premise of One Punch Man trumps in-universe defense mechanics.
Saitama wins — his character concept as the ultimate punch likely overrides Infinity's mathematical defense. This is a meta-narrative question more than a power-scaling one.
Gojo Satoru also fights
Saitama also fights