Someone tells a joke based on a prompt. This would be your Genesis block. Then everyone else competes to tell the funniest joke based on only that and the new prompts from the audience.
Repeat until you have an ongoing, hilarious comedy routine that cannot be edited after the fact without being found out because that would ruin the whole routine. It just wouldn't be as funny.
Absolutely it works that way. Nobody has a formula for coming up with jokes, they usually try different ones until people laugh. Guess and check. Exactly like taking SHA-256 hashes based on the Merkle tree until the hash, taken as a number, is less than or equal to the target.
Someone tells a joke based on a prompt. This would be your Genesis block. Then everyone else competes to tell the funniest joke based on only that and the new prompts from the audience.
Repeat until you have an ongoing, hilarious comedy routine that cannot be edited after the fact without being found out because that would ruin the whole routine. It just wouldn't be as funny.