Currently the 20th crypto is at about $600m market cap. For Steem to enter the top 20, it will need to at least increase its market cap by 3 folds and the other crypto need to remain the same or weaken.
As a Steemian, I can clearly see the potential of the STEEM platform. We have 50,000 active accounts and growing. There are tens or hundreds of dApps. It is really exciting.
In my opinion, the key reason why there isn't enough money flowing into the STEEM platform is because people haven't recognize the business use case of STEEM.
First of all, STEEM platform can be used as a blogging platform for any company. The cool thing about blogging on STEEM is that one article is posted across multiple sites (e.g. Steemit, Busy and Steempeak). This is actually quite good in improving the online presence of a business.
In addition, STEEM platform is also a perfect place to harness crowd wisdom for crowdsourcing and crowd prediction. These are all actual use cases that are of value to the real business world. We have no lack of good creators on STEEM, but more people need to know that.
In essence, I think we lack marketing and that was why @timcliff's Steem Blast Day got me quite excited. Though it didn't seem to have worked well enough, it was still good effort and every Steemian should play his/her part to spread the word to the rest of the world.