Quickest Time to $1B Revenue
- 2.3 years -- . This one says 4 years for Groupon - 
- This one says it's 2 years and Unicorn Speed Record in the US, but at time of writing - it has $300M revenue and $1B valuation. 
- About 5 year to get $1B - FB - 
- Typical valuation of $1B is $100M revenue. 
- This one says fastest time ever in 2018 is 8 years to $1B - 
- Summary: lots of conflicting info. Everyone talks about valuation, not revenue, and certainly nobody about net revenue.