> since Go was released it seems every other language has tried to copy it
What are you referring to here? I would consider myself quite well-apprised of recent developments in PL theory (and practice) and I am struggling to come up with examples matching this description.
Go's main selling point, at least as of 10 years ago, was its green threading system, and even at the time it was substantially inferior to the green threading systems available in BEAM (Erlang, Elixir) or GHC Haskell
Deno 2.0 explicitly copied Go in many features, especially with dependencies being referenced via URL, and many of the CLI's commands are inspired by Go such as install, fmt, and test.
- Java's latest addition of green threads is 100% lifted from Go.
- Rust and Zig's built-in language tooling, including dependency management and an opinionated autoformatter.
- Java's ZGC was an obvious response to Go's GC. There's also the realization that the fewer GC knobs there are to tune the better.
- Possibly Java's quest to add value types as well, not 100% sure on the timeline.
- Broad industry trend towards providing easy cross compilation into static binaries.