Richard, it is indeed possible for different languages to choose different
approaches.
If your point is that an R named list can simulate a Python dictionary (or for
that manner, a set) there is some validity to that. You can also use
environments similarly.
Arguably there are differences i
Consider
m <- list(foo=c(1,2),"B'ar"=as.matrix(1:4,2,2),"!*#"=c(FALSE,TRUE))
It is a collection of elements of different types/structures, accessible
via string keys (and also by position). Entries can be added:
m[["fred"]] <- 47
Entries can be removed:
m[["!*#"]] <- NULL
How much more
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