I think Crockford is wrong in that linked article. What he presents as unique features of prototype-based OO seem to really be features of highly dynamic OO. Al

I think Crockford is wrong in that linked article. What he presents as unique features of prototype-based OO seem to really be features of highly dynamic OO. All of the things he implements in that article could be implemented just as easily (indeed, in more-or-less the same way) in Python or Smalltalk, couldn't they?