Go and kubernetes clearly have reached a critical user mass that makes one confident other companies will maintain it even if for some reason google abandons ship.

flutter on the other hand is tremendously complex, and has yet to display any major company having bet their future on it.

I guess it depends on how frozen Go features happen to remain. while all modern alternatives release their value types + AOT tooling support.

At least Kubernetes won’t be in trouble since its no longer under the aegis of Google. CNCF is now the maintainer.

Go can easily within a year fade away to be replaced with something else. Remember MongoDB?

MongoDB still seems to be around and kicking?

I'm still a MongoDB cerificated developer. The popularity has dropped as with the amount of positions available.

There may come a time when this applies to Go.

I'm curious, what seems to be the Next Big Thing that is superceding MongoDB?

Graphql. Managed databases. A new beginning with Postgres for some.

Postgres is not new. It was part of my stack 10 years ago. So many new people have moved to postgres it has become hot.

My guess is returning to SQL databases. An SQL database can handle a surprisingly large workload pretty well and provides some very nice correctness guarantees.