OP said> "...It's thought by some that ..." openasocket says>"How on Earth does someone discover that? What possible series of events or hypotheses would lead

OP said> "...It's thought by some that ..." openasocket says>"How on Earth does someone discover that? What possible series of events or hypotheses would lead someone to perform such an experiment? Whoa! No one said that anyone "discovered that", or that "such an experiment" was performed. The article merely said that someone speculated that possibility. To further speculate on hearsay of mere speculation is not wise.