This past Monday, sci-fi author and pro-choicer, Patrick S. Tomlinson, tweeted a thought experiment involving a hypothetical situation wherein someone is asked to choose between saving either 1,000 viable embryos or a five year old from a burning fertility clinic. Tomlinson laid the thought experiment out over several tweets. He implied that, because most people would save the five year old child instead of the embryos, pro-life arguments that assume life begins at conception are invalid.

The problem: his argument just wasn’t thought out well.

And so, it became a giant target on Twitter for those who understand logic and ethics.