Yeah, this. In 1995, about the only mainstream language with generics was C++ with templates. (Same in 2000 when C# was released, incidentally) When Go came ou

Yeah, this. In 1995, about the only mainstream language with generics was C++ with templates. (Same in 2000 when C# was released, incidentally) When Go came out in 2009, though, Java and C# had pushed generics into the mainstream. Additionally, they'd shown some of the problems with trying to retrofit generics onto a language and ecosystem that didn't previously support them.