Freedom is the best representation of Bitcoin for me. It has the unmatched ability for you to truly own your wealth and not require permission to use it.

Honestly I think for 50% to be using Bitcoin natively we're a pretty far ways off from that. However I think the more immediate opportunity is for Bitcoin to be used behind the scenes in a lot of products and services. Like Strike for example. It's the superior payments mechanism and we'll probably start with strictly the rail adoption first, then more to direct consumer usage.

Education. There's still a lot of tools that need to be developed but there's still 80%+ of the world that has no idea what bitcoin is or how it works. Honestly most don't care to know and we need to help them understand why it's important to learn about.

Regulation. We've got wind in our sails right now. The thing that can really suck that air out is some really bad laws and regulation that makes it impossible to use or interact with.