EQUIVALENT EXCHANGE. www.nytimes.com/2017/01/26/science/so... Ed's site: edlatimore.com/ hes got good advice join list: PoliticsAndStuff (563 subs)Mention Histo EQUIVALENT EXCHANGE www nytimes com/2017/01/26/science/so Ed's site: edlatimore com/ hes got good advice join list: PoliticsAndStuff (563 subs)Mention Histo