[] are already taken by the slicing syntax, but if that wasn't the case you could have something like vec@2 and vec@{end - start} for that, which would open the

[] are already taken by the slicing syntax, but if that wasn't the case you could have something like vec@2 and vec@{end - start} for that, which would open them up for generics. I'm pretty sure the main reason to choose <> was familiarity above all else.