Merope Tsimilli-Michael, after giving a talk at a conference in honor of George Papageorgiou, where John Allen also participated, asked his opinion on her presentation. In turn, John introduced me to Merope a few months later,  while in Mexico (through Skype). I read with interest what she and Pierre Haldimann had to say.

For more than twenty years we have witnessed worrying changes in science… The first symptom was that a number of publications contained serious flaws… the frequency of low quality publications has steadily increased.

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