Many years ago, when my daughter was around five, she asked me how much I loved her. I held my hands about 20 cm apart and said “this much”. She was devastated, and rightly so. What a dick move. I had some idea in my head about trying to show her that some things were unmeasurable, and something about relativism, but really it just came across as me not caring enough.
The only good thing about this story is that I haven’t set the motherhood bar too high so none of them will struggle to reach my level if they ever have kids in the future.