They’re saying that the only way you can keep neat and easy conversions between same-dimension units is by maintaining a lot of those deprecated units such as furlongs or chains, because by removing them, now you end up with complete nonsense conversions.
I get your point but as an American I've never heard of converting feet to chains or furlongs? Lol sounds like pirate measurements to me
I agree that they probably don't see much use but they're there, along with some other pretty impressive units.
That’s not what they’re saying.
They’re saying that the only way you can keep neat and easy conversions between same-dimension units is by maintaining a lot of those deprecated units such as furlongs or chains, because by removing them, now you end up with complete nonsense conversions.