What is 'The Bottom Line' really conveying?

1the report

Eliezer Yudkowsky's essay imagines a detective's report: reasoning on top, then a line, then a verdict below it — 'Therefore, the defendant is guilty.'

2which came first?

Here's the twist: whether that final line carries any real weight depends entirely on which came first — the reasoning, or the verdict.

3verdict first

If the writer sat down knowing the verdict already — told to prove guilt — then the 'reasoning' was picked to fit. It would look the same whether the defendant was guilty or innocent.

4evidence first

But if the writer actually investigated first — followed clues, weighed facts — and only THEN wrote the verdict, the words on top really did cause the bottom line. That process carries evidence.

5the real test

Yudkowsky's point: you can't judge an argument's strength just by reading its words — you must ask whether the writing process could produce that same conclusion no matter what was true.