Right now, bitcoin chart is showing like double top formation around $51,000 levels but whenever both double bottom (or triple bottom as well) and double top are happening, that will indicate market is sustaining which is usually ending up in breaking into the upper side. When market is not having any clear-cut idea about where to be heading toward, it will be forming both double bottom and double top pattern but that must be a very good signal to assume about upcoming stronger bull run.