By my conservative calculation of marketcap on 8/7/2015 of both bitcoin and ethereum and their recent highs around 6/12/2017 it comes out to about a 3.32% gain per month on ethereum closing the gap.
Most ICOs are coming out on the ethereum network and most of the work is being done on the ethereum network. That could change but I don't see it so watch for the Flippening in 1/2018 or sooner. Happy new year!
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