This is a good ratio if calculated from a few years ago but simplicity is such a good thing that people can learn very quickly and only step over a few years, the golden ratio that has worked for most investors is starting to get more uncomfortable in the level that suits investors, instead of coverage and being good at most capital levels, currently this only works well in large capital and low risk in small capital but not fair for profit. Bitcoin and ethereum are no longer a rudimentary simplicity, it has been refined a lot and some other rudimentary investments will be better, not more than half a year will have results that are easy to satisfy us.