In 6 months, Mint went from 0 to 1,000,000 users. But their original goal was 100k users in 6 months. So, how did they 10x their goal? Three

In 6 months, Mint went from 0 to 1,000,000 users. But their original goal was 100k users in 6 months. So, how did they 10x their goal? Three