DOGE Founder Breaks Silence on Which Crypto Will Go Up or Down Next Billy Markus, who cofounded Dogecoin, responds to popular question ‘which crypto will go up or down next’ Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Filed under: Bitcoin - @ January 1, 1970 12:00 am