It is not reasonable to compare today's Facebook growth rate to steemit growth rate. Facebook started off slow, and it caught on. Everyone I talk to about steemit gets hooked immediately. I have been involved with crypto since 2008. Bitcoin adoption is terrible! Only nerds and finance people own bitcoin, it's a very small percentage of the total population. Steem coins however are super easy to get compared to bitcoin. Steem is frictionless to obtain. Once there are steem stores then it will be frictionless to spend as well.