Yes, the numbers are from a toy example, one that the author used to make one uncontroversial point in one section of the post. Those are the numbers we are dis

Yes, the numbers are from a toy example, one that the author used to make one uncontroversial point in one section of the post. Those are the numbers we are discussing in this subthread, which began with: > The idea that the difference between 0.9005 and 0.90005 is "small" is … weird. We aren't talking about a situation where both filters are processing all the air in the room. We're talking about a situation where the filters are only processing 10% of the air in the room. That's the defining characteristic of the hypothetical.