Dirac’s Legacy: A New Quantum-Mechanical Constant of the Universe: Hx

"Testing the Large-Scale limits of quantum mechanics". The European Union has launched a call for proposals under the above title, to which a large number of research centres participated between 2018 - 2022, with many valuable results, 134 peer-reviewed papers, coordinated by Universitá degli Studi di Trieste, Italy. The term "large-scale" offered a very wide range of possibilities. Almost all theoretical/practical research looking for answers using quantum mechanics is looking down the dimensional scale, towards more and more 'elementary' components. Perhaps there is an answer to be sought up the dimensional scale as well. The interpretation of the present publication, following Dirac's guidance, shows the universe from a new perspective with the help of quantum mechanics.