This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Thread::Backtrace < Object (from ruby core) --- An internal representation of the backtrace. The user will never interact with objects of this class directly, but class methods can be used to get backtrace settings of the current session. --- # Class methods: limit
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.