I was originally planning to tweet this by itself:
STARTUPS HATE HER: DATA STRUCTURES TO NAME-DROP WHEN YOU WANT TO SOUND SMART IN AN INTERVIEW
- bloom filter
- prefix trie
- ring buffer
But I realized I actually wanted to say some earnest, not-shitposty things about each of these data structures, so I figured I should take it to my neglected blog instead. If you just wanted the clickbait version, you can stop reading now.