According to an opinion piece at The Register, California's is vague and nobody knows, including the law's proponents: https://news.ycombinator.com/item?id=4739

According to an opinion piece at The Register, California's is vague and nobody knows, including the law's proponents: https://news.ycombinator.com/item?id=47398798 https://news.ycombinator.com/item?id=47398798