It's important to note that the article is from 2002 ( http://web.archive.org/web/20020210051448/http://www.paulgra... ) and the first public version of Arc is from 2008 ( http://web.archive.org/web/20080131070715/http://arclanguage... ).
In 2002 the main accusation was that Arc was only vaporware, or a mix of or ideas and features in pg head, perhaps with a first secret internal prototype implementation.
It's important to note that the article is from 2002 ( http://web.archive.org/web/20020210051448/http://www.paulgra... ) and the first public version of Arc is from 2008 ( http://web.archive.org/web/20080131070715/http://arclanguage... ).
In 2002 the main accusation was that Arc was only vaporware, or a mix of or ideas and features in pg head, perhaps with a first secret internal prototype implementation.