[4death4]

> things that are easy to do in the main implementation might be very difficult to do in yours.

The author mentions this when they talk about the ease of implementing new features in an interpreted language vs. a compiled language.

[foota]

Hm, this is true, but I think it's worth pointing out that this is more general. The article was focusing on how JIT is harder than interpreting, whereas neither model in parent's post is inherently more complicated.