Stream 1: Build amazing products for particular domains, charge license fees
Stream 2: Build a great SaaS platform for running Julia, charge for compute
Since all of our domain products are built in Julia and often involve significant compute cost for their intended application, hopefully both at the same time :).
It's a bit less of a pure language / infra play and more a product play. Ie, docker / containers was almost a pure infra play in the end. These guys make actual things you can use.
The later sells better into business I think and is less likely to be competed against. Google / AWS et al are generally pretty quick to compete on the infra play level.
YMMV, but I find it is fantastic in this use case. And I don't have to worry about semantic space.
If Julia had its own lean realtime database implementation, then I can see it becomming a killer language for finance. JuliaDB/OnlineStats is probably 60% of the way there.