Damn, I wish I had $50k to throw around like that.

Publica (PBL) may be worth a look. They're creating a decentralised book publishing platform. Authors can raise funds for their book before, during and after creation (essentially Kickstarter, Patreon or standard retail models). The PBL token is used to buy books, and is converted from fiat under the hood. Most interesting (to me, at least) is that each book essentially becomes its own cryptocurrency, so there are a finite amount of any one book, which can be traded, borrowed or sold like physical books. The idea that a digital first edition comic book could become a highly sought after collectable is the kind of sci-fi insanity I love.

It's being created by an established company, and they seem intent on getting it out as quickly as possible; their roadmap has it being released next December.

Market cap is around $10m, and while $1b is probably optimistic I could see it hitting $200m comfortably. And there's always the chance it goes nuclear, Amazon style.

Personally, it's one of the few projects that I'm interested in beyond being an investment. They've been doing a Q&A for the last couple of hours if you're interested: https://www.youtube.com/watch?v=DjAZg8_i8fo