David Karp would’ve been the most successful young millionaire, if it wasn’t for YouTube and the rise of short vlogs like Vine and TikTok. Karp was an innovator but came too early and was too cautious to top the short vlog games. He began his career without a high school diploma, dropping out to intern for big tech companies. In 2007, he launched Tumblr, a short form blogging platform for people to easily view and create content. Karp would lead a campaign calling tech industry leaders to support Planned Parenthood in his personal ventures with the company. However, as Tumblr had become a massive company on its own, having 75.4 million blogs, Karp would get cautious about the future and sell the company to Yahoo for $1.1 billion, Tumblr would be Yahoo’s downfall, with Yahoo losing nearly half its earnings from Tumblr as it was eclipsed by YouTube and Vine. Karp would resign from Tumblr and the company with massive promise would fail. What I learned from the mistake of David Karp and his company Tumblr is that you have to double down on your product and not sell out to the highest bidder when things are looking up. Entrepreneurs need to be futurist minded.