I think what the author is interpreting as Japanese style is often just code that was written 10-20+ years ago when conventional ruby just looked a bit differen

I think what the author is interpreting as Japanese style is often just code that was written 10-20+ years ago when conventional ruby just looked a bit different than it does now. Enumerable was less featureful, the use of `and` and `or` was more prevalent. More people wrote in "Seattle style" where they omit parentheses, etc. Contemporary ruby is less adventuresome and more homogenous in it's style, which I consider a good thing.