It took OpenAI’s human-like chatbot ChatGPT two months to amass a hundred million users—a record in the social media universe. Then came Meta’s Threads, which surpassed that record in just a matter of days, making it the fastest growing platform ever and one of the most concrete competitors yet to Twitter.

The popularity of the new app is credited both to the existing base of Meta users flocking to Threads as well as the exodus from Twitter following Elon Musk’s takeover of the social media company last year. Threads’ rapid rate of adoption is starting to catch e-discovery professionals’ attention, many of who see a new source of relevant electronically stored information (ESI) to add to their growing list.