This holiday week, we’re taking a look back at some of our shows from 2019 that deal with topics we’ll be thinking about in the year ahead. That includes the way tech companies are valued and how it can affect all of us. Tech valuations were soaring, then in the fourth quarter of this year things got messy. Earlier this year, I asked Alex Wilhelm, editor in chief at Crunchbase News, why these private valuations have risen so high.