EDIT: The man himself made a post: https://news.ycombinator.com/item?id=13058481 https://news.ycombinator.com/item?id=13058481 I wish it could be summarised in

EDIT: The man himself made a post: https://news.ycombinator.com/item?id=13058481 https://news.ycombinator.com/item?id=13058481 I wish it could be summarised in a comment, but it's actually not "that simple," so I recommend you read Chris Seaton's posts about GraalVM and JRuby+Truffle which has some excellent high-level explanations [of why Graal is amazing]. :) http://chrisseaton.com/rubytruffle/ http://chrisseaton.com/rubytruffle/