Eric Jackson, a longtime activist investor in Yahoo and the managing director of SpringOwl Asset Management, talks with Recode's Kara Swisher about the momentous deal that will sell Yahoo's core business to Verizon for nearly $5 billion. Jackson reflects on how he came to be a champion, and then a critic, of Yahoo's final CEO, Marissa Mayer, and whether saving the pioneering internet company was doomed from the start. He also suggests that the end of an independent Yahoo carries some lessons for other tech companies moving forward.