All of the at least one attempts fail to confirm MWI.

https://www.lesswrong.com/posts/QSubfnBm3GGaHaGLX/inter-branch-communication-in-the-multiverse-via-trapped

Proposal for an experimental test of the many-worlds interpretation of quantum mechanics

. Will someone run that experiment or one inspired by it, as measured by citation? What will it find?

Whenever "Nobody tries it." is below 33% at a random time in the last week of trading, trading is extended for another month.

In the article "“Proposal for an experimental test of the many-worlds interpretation of quantum mechanics” its author R. Plaga suggested that if we t…