In this episode of the Rubber Duck Dev Show, we discuss ractors which are Ruby's implementation of the actor model for concurrency.

• Ruby 3.0 Release Notes
• Ruby 3 is released - The list of Ruby 3 features
• The actor model in 10 minutes
• Ractor: Ruby’s Version of the Actor Model
• How Fast are Ractors?
• The Practical Effects of the GVL on Scaling in Ruby
• Amdahl's law