Gap type

What kind of unknown a gap is: void, fragile, proxy, clash, or adversarial.

Void: nothing is known here, the question has not been asked of this system. Fragile: something is claimed, but on evidence too thin to carry weight. Proxy: what is measured stands in for what matters and may not track it. Clash: two established results predict opposite outcomes and both cannot be right. Adversarial: a question written to disprove the most promising scientific pillar. A goal-level cluster status says which kind dominates: void, fragility trap, proxy mirage or cluster clash.