Hey Class and Professor I hope you all will be doing well. Yes, I agree that it is smart strategically for Alphabet as a whole to diversify into so many unrelated product areas beyond Google's specialty of online advertising. They have a large percent of market share in the field of advertising thus it is important for maintaining a competitive advantage. Thus there are many threats and challenges that need to handle. The competitors of google includes Facebook, yahoo, Microsoft. All of them are the major competitors of google.