,,Yes,,agreed,,,,RVX/ZEN seem to be more advanced albeit with RVX missingt every rung for its advancement and ZEN shareholders in reality are still in limbo after 10 years coupled with little to zero liquidity,,,,,,,BTI seems to have a story which boggles the mind as to the market size for its technology,,,,,thats one of the biggest differences imo.,,,not to mention the large support base of people who are on the high end of education around what we are involved in.