They aren't collisions so much as overloads. e.g. GPUArrays implements the same base AbstractArray methods. I'm not a big fan of using either (in any language)

They aren't collisions so much as overloads. e.g. GPUArrays implements the same base AbstractArray methods. I'm not a big fan of using either (in any language) because it obscures where imports come from, and AFAICT overloads are created even with a plain import.