Weighing & Impact Calculus

Most rounds end with both teams winning something, so the question the judge has to answer is "whose argument matters more?" Weighing answers that question before the judge has to, and the team that answers it first and best writes the ballot.

The four lenses

Magnitude: how big the impact is, meaning how many people and how much harm or good. Probability: how likely it is to happen, which depends on how many fragile steps sit in the link chain. Timeframe: how soon it arrives, whether inside the round’s policy window or a decade out. Reversibility: whether it can be undone, since economic losses recover and extinctions do not. Any impact in any round can be compared through these lenses, and you should write your case knowing which ones it wins.

Meta-weighing: the varsity layer

If you say "we outweigh on magnitude" and they say "we outweigh on probability," the judge is right where they started. What breaks the tie is arguing why your lens should control the comparison: "prefer probability, because a judge voting on speculative catastrophe writes a ballot for every scary story ever told." The mirror image works too: "prefer magnitude, because some harms are so large that even small risks of them dominate rational decision-making." This comparison of comparisons is meta-weighing, and it is where close elimination rounds get decided.

Timing and placement

Weighing that first shows up in final focus is weighing your opponents never get to answer, and many judges discount it for that reason. Plant comparisons in rebuttal ("even if you buy their economy argument, our impact is faster and surer"), build on them in summary, and cash them in during final focus. By the last speech your weighing should sound familiar, because the judge has already heard it twice.

Practice with the Impact Calculus Ladder below until you reach for the right lens by reflex, then check yourself with the Weighing Mastery quiz.