<prompt> Human: I was always told to have between 4-5 healthy streams of credit. However, recently I read an article about a man who had 25 credit cards and about 300k in available credit. He kept a 0 balance on all the cards, and had a near perfect credit score. It makes sense to me that the more available credit you have the better, however the number of credit cards seems extreme. Does anyone have any insight on this? Thanks!edit: Heres the articleedit2: heres another article i found In this one, the author opened 13 credit cards and received 300,000 miles as a sign up bonus.  <response>: I dont think it would harm your credit score, but it would be a pain to manage. 