Almost alone among celebrities, Stephen Colbert used to ruthlessly (and justifiably) mock Gwyneth Paltrow’s lifestyle brand Goop on The Late Show with Stephen Colbert. So eyebrows were raised (at least mine were) when it was learned that Paltrow would be a guest on The Late Show. During a bout of insomnia last night I saw the episode and had time to write about it. Her appearance was worse than I expected, a veritable puff piece promoting her her quackiest In Goop Health, where a featured speaker is a rabidly antivaccine doctor named Kelly Brogan.