https://www.cnbc.com/2018/02/01/bezos-amazon-will-double-down-on-alexa-beating-projections.html >Jeff Bezos is giddy about Alexa. >"Our 2017 projections for Alexa were very optimistic," the Amazon CEO said in the company's fourth-quarter earnings release on Thursday. "We don't see surprises of this magnitude very often -- expect us to double down."