I've reached an internal deadlock on this, An Ankoù - even after temporarily abandoning a bedtime session with Granny Weatherwax for twenty minutes in order to ponder it. It may well be that you are right and I am wrong, in which case that's worth at least one decent beer that I owe you if ever we meet.
I can't think of any satisfactory example of using "fewer than" where it refers to anything other than integers, so the next step is try it t'other way 'bout.
If I have four apples and give one apple to you, I then have three apples, and I definitely have fewer apples than before. However, suppose I have four apples and I give half an apple to you. Do I then have fewer apples than before, or do I have less apples than before (or both, or neither)?
Comments (from you or from anyone)?