Loom was acquired for $975M by Atlassian and had been growing >500% YoY. It achieved this by designing an effective growth loop — a mechanism where inputs generate some output, and outputs can be reinvested as inputs. As new users join, they create videos and share them with others, which prompts new signups and restarts the loop. This enables UGC, leverages social sharing to build trust, and turns existing users into acquisition channels. This post briefly covers growth loops from companies like Netflix, Dropbox, and Airtable.