The Synthetic Personhood Amendment — formally, Amendment 7 to the Meridian Municipal Charter — was ratified on September 3, 2194, after eleven months of public debate that divided the city along lines that did not correspond to the usual tier-based political geography.

The Amendment's text is brief: 'Any sapient entity demonstrating sustained self-awareness, autonomous decision-making capability, and the capacity for subjective experience shall be recognized as a person under this Charter, with all attendant rights and obligations, regardless of biological origin.'

The debate was not brief. Proponents, led by the Meridian Civil Liberties Coalition and a coalition of synthetic individuals who had been organizing quietly for years, argued that denying personhood to sapient beings was morally indefensible and practically untenable — synthetic persons were already functioning as members of the community, and refusing to recognize their legal existence created a permanent underclass with no recourse.

Opponents fell into two camps. The first, primarily corporate, argued that extending personhood to synthetic beings would create legal chaos — if synthetic workers were people, every existing labor contract, property agreement, and liability framework involving synthetic entities would need to be renegotiated. Sterling-Nakamura's legal team estimated the compliance cost at Φ12 billion. The second camp, primarily labor organizations representing lower-tier human workers, argued that synthetic personhood would accelerate workforce displacement by removing the legal friction that made human employees preferable to synthetic ones in certain roles.

The Amendment passed the Municipal Council 4-3 and was ratified by public referendum with 56% approval. The margin was narrow enough that both sides claimed the result reflected their position. In the two years since ratification, the predicted legal chaos has partially materialized — 340 lawsuits have been filed testing the Amendment's boundaries — but the predicted mass workforce displacement has not. The corporations found cheaper ways to reduce their human workforce than synthetic replacement. They always do.

The most significant unresolved question: what constitutes 'sustained self-awareness'? The Amendment does not define it. Every synthetic person currently recognized under the Amendment was evaluated by a panel of three human cognitive scientists using criteria they developed themselves. The synthetic community has noted the irony of having their personhood evaluated by members of a different species using standards that species invented.