> Millions of programmers out there, and you're saying there's not even a 1% chance that a single one of them is moving 10x faster

Would that mean that every other claim to be moving 10x faster is an exaggeration? It evidently is, as these claims of massively increased productivity are purely anecdotal.

If the claims were ‘5% productive across the board’, it would be huge, but 1000%? That is a ludicrous tall story that requires extraordinary proof.