I'm playing around with it, and it's very cool! One issue is that fingerprint expansion doesn't always work, e.g. I have a memory "Going to Albania in January for a month-long stay in Tirana" and asking "Do I need a visa for my trip?" didn't turn up anything, using expansion "visa requirements trip destination travel documents..."

What would you think about adding another column that is used for matching that is a superset of the actual memory, basically reusing the fingerprint expansion prompt?