One of my favorite aspects of Ruby is that everything is an object with methods. Adding global operators/functions like this would only complicate the language.
> But we also -- perhaps more often? -- ask questions like "Is this item part of this group?" We are asking a question about the item.
Here we are actually asking the group a question about itself. An item would not know a group's contents.
> But we also -- perhaps more often? -- ask questions like "Is this item part of this group?" We are asking a question about the item.
Here we are actually asking the group a question about itself. An item would not know a group's contents.