Show HN: Anki like features for any blog post

Hi HN,

I was inspired by what Michael Nielsen did with his "Quantum Country" project.

Blog Memorizer does the same but for all blog posts. That is to say, add flashcards at specific parts so you memorize what you're reading (this is great for reading long blog posts like pg's essays or wait but why)

Let me know what you think. I built it in a week to gauge whether people would find something like this useful.