Historic index/map of places I liked enough to check in to help when people ask - where should I go in.. Berlin?  Reason two is when in a new place you can check for restaurants your friends have already check in - which is a more trusted signal.

I like this. Sort of the reason I ask is because I always wanted to build a journaling app w/ geo and mood tracking/streak. I have a tough time journaling normally and I have the existential dread that I will ultimately end up forgetting most of the days I have lived and thus never have really lived them at all.

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