If `main` is an instance of `Object`, why can't I call it?

Question

When I type self, I get a return value main. I made this test:

main2 = Object.new

Then I can call main2

Answer 1

"What is the Ruby Top-Level?" is an article on the Ruby top level that explains everything you need to know.

As an aside however, you can access main anywhere in your program by using TOPLEVEL_BINDING.eval('self').