I noticed that when comparing two numbers that aren't the same unit, there's no answer and no other indication that anything is wrong.

For example:

$1,234 > 190

doesn't show anything. It would nice to get a ❗, ⚠️, or red squiggly line to let me know that there's no output. Each of the following works fine:

$1,234 as number > 90

$1,234 > $90

It makes sense, but some visual feedback would be nice.