One example. Not a very important one, but illustrative. https://discourse.julialang.org/t/why-no-base-iterators-map/14280 https://discourse.julialang.org/t/w

One example. Not a very important one, but illustrative. https://discourse.julialang.org/t/why-no-base-iterators-map/14280 https://discourse.julialang.org/t/why-no-base-iterators-map/... The "bubble effect" here was assumption that everyone has internet access and dependencies to external ( community maintained ) packages are zero cost. Happily 2 years later this was resolved to my satisfaction.