@volkris There is no application where it makes better sense unless you mean something that already uses that and therefore youjust dont have the choice (often the case)

@freemo as we apply measurements, we disagree :)

We find that, for example, inches are scaled far better for so many projects than cm or mm, in the same way that degrees F are scaled better for human application than degrees C or K.

When it comes down to something ranging in size from around a baseball up to a table leg--roughly human sized things--the royal feet units are simply more practical, so we prefer them.

They make more practical sense.

@freemo you say proper precision and grading, but that's the whole point: in so many real world applications we find that the precision and grading isn't the most convenient for the work in front of us.

Say you're aligning a platform by eye, see that you need to raise it by about the length of your thumb, so you call out to the lift operator to raise it by a quantized amount.

"Two inches" happens to be a pretty convenient call out rather than "five centimeters" or, heaven forbid, "fifty millimeters."

It's simply more intuitive at common human scales.

Or, to put it another way, they're big and bulky, which is perfect for dealing with big and bulky human scale tasks!

@volkris how is 2 inches more intuitive than 5 cm.... i dont get it. Sounds like whatever is more intuitive is just what youre used to

@freemo Well, would you agree that 2 inches or even 5 cm is more intuitive than 50 mm? Many of the same reasons, I'd say.

One is a matter of scaling of error. If your perception of any unit is off by a bit, then the more of the unit that you stack up stacks up those errors too.

You might intuitively know about how big a cm is and about how big an inch is, but once you start stacking them, the errors add up.

@volkris I would say that 50 mm is equally intuitive. Its just more verbose than you need because you dont need that level of precision. In fact in this case I would use 1/2 dm myself.