Infinity stops even Sonic's speed — you can't run through a mathematical impossibility.
Sonic is potentially the fastest character in this matchup, but Infinity doesn't care about speed. Infinity divides space infinitely between Gojo and any incoming attack. Running faster doesn't help — you're approaching an asymptote, not a physical barrier.
Sonic could circle the globe in seconds and still never reach Gojo. The faster he runs, the more subdivision of space occurs. It's Zeno's paradox weaponized.
Unlimited Void could potentially catch Sonic — even at full speed, a Domain Expansion creates an inescapable zone. The infinite information overload would paralyze Sonic regardless of his physical speed.
Super Sonic's Chaos Energy might interact with Infinity in unpredictable ways — the Chaos Emeralds operate on a different physics system that could theoretically bypass mathematical barriers.
Infinity stops all physical approaches regardless of speed. Unlimited Void creates an inescapable zone of infinite information. Six Eyes provide perfect awareness of Sonic's position at all times.
Sonic's speed exceeds anything in JJK. Super Sonic's Chaos Energy might bypass Infinity's mathematical barrier. Chaos Control's time manipulation could counter Domain Expansion by freezing time before it activates.
Gojo wins through Infinity's conceptual defense. Speed, no matter how extreme, can't solve a mathematical impossibility. Unlimited Void provides a reliable win condition against any purely speed-based fighter.
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Sonic the Hedgehog also fights