this class and if you worked all the way through this course you should now consider yourself an expert in machine learning. ▸ As you know, machine learning is a technology that's having huge impact on science, technology and industry. ▸ And you're now well qualiﬁed to use these tools of machine learning to great effect. ▸ I hope that many of you in this class will ﬁnd ways to use machine learning to build cool systems and cool applications and cool products. ▸ And I hope that you ﬁnd ways to use machine learning not only to make your life better but maybe someday to use it to make many other people's life better as well.