They aren't a cure for a pandemic. They aren't a bringer of word peace. They don't address homelessness poverty food scarcity climate change or pretty much anything else that ails society. They do however let you make lists. Or use them as flashcards. There are probably other uses (origami?) but those were my two. I was able to write on them the ink didn't bleed through nor did the index cards actively repel the ink. Basically functioned as expected. They didn't seem to be as thick as those I remember from my youth but that's nostalgia for you - things were always "better" when you were a kid and didn't have the responsibilities of an adult.