Market cap will go many Billions for sure. People are inherently the source of value. Take any other coin...it's ultimate value is derived by people. Some might say it's because of the energy spent on the mining. But, It's people. "Money is one of the oldest forms of communication" Andreas Antonopolous.

Steemit Network is all about communication. Within that, it's a free market democracy. Based on your holding's your votes are worth so much...it's communication. what you vote, what you comment....what people respond and so forth. Applications are and will continue to be built on top of the platform...creating more and more streams of communication....which results in more and more money. The current market cap of, reddit, twitter, facebook, instagram...are all valued in the billions. This platform is better.

This kind of value will indeed be supported in the long term...it's changing the narrative into the education of 'what is money....what is value....what matters?'

Invest in people.
It's all about people.