This is the first I've heard of 'chrysalis effect' applied to CFS. However, according to wiki, the chrysalis is the pupa form of a butterfly. So how does that provide a 'map' to recovery from CFS?
I think you will find a lot of skepticism on this forum about something like this.
I have known CFS patients who had spontaneous remissions that they can not really explain, they just keep trying treatments and suddenly something works. What worries me is that there is often a 'superstition' effect that kicks in at that point, they or their healthcare advisors attribute the remission to the most recent thing they tried, when really CFS can wax and wane on its own. When that superstition then becomes part of a commercial therapy, claims are often made based on selected cases. Those cases where people recover are turned into testimonials, and the cases where people do poorly or even get worse from the therapy are ignored. This is called 'cherry picking' the data in scientific circles, and it is pseudo-science, or worse, outright scientific fraud. Thus we like to see controlled studies here on this forum, and that is what is usually discussed, research-based claims.
But I am always interested in learning something new. What is this 'map' to recovery? Even if there is no research behind the crysalis effect, perhaps there is something anecdotal here that can be learned and might help someone.