[vidarh]

It's harder to compile, period. But's it's in many ways easier to compile a dynamic language than a static language, as you can implement a single mechanis for defining classes and calling methods. That mechanism can often be very similar to how it would be in an interpreter.

What is harder is to achieve the same performance jump from interpreted to compiled. Exactly because the "naive" approach to compiling dynamically typed languages gives you similar machinery to a well written interpreter, while for static language the "naive" approach often gets you much more efficient results.