feiri Karma 15 Created 5 years ago About I like osu https://osu.ppy.sh/users/3214844 Recent Submissions 1. ▲ Ask HN: Insights to share about math tutoring, as a student or a teacher? 4 points · 2 years ago · 3 comments 2. ▲ Ask HN: Plural nouns vs. singular nouns when explaining technical concepts 2 points · 2 years ago · 3 comments All submissions on HN · View profile on HN