EQUIVALENT EXCHANGE. www.nytimes.com/2017/01/26/science/so... Ed's site: edlatimore(dot)com/ hes got good advice join list: PoliticsAndStuff (710 subs)Mention H EQUIVALENT EXCHANGE www nytimes com/2017/01/26/science/so Ed's site: edlatimore(dot)com/ hes got good advice join list: PoliticsAndStuff (710 subs)Mention H