Learned about objects in branch 65851400_about_objects_master

* Anything can be an object
* Objects can be converted into strings
* to_s and inspect do the same thing, except in the case of nil. nil.to_s == "", while inspecting nil is equal to   
  "nil"
* Every object has a unique id.
* For special objects, they always have the same id (false, true, nil)
* Small integers have an object id that seems to be equal to (value*2) + 1
* Cloning an object creates a different object with its own id

[#65851400]