what is a more costly signal than risking your soul? https:…

Everything else would be a more costly signal. Costly signals have to be easily verifiable. Souls are not verifiable. People would not recognize it as a costly signal without a shared belief in the soul and an idea of what it takes to risk.

i am so proud of you two arguing all the way onto the leaderboard.
well done you's. you both look real angry now though deer 😁