This is a matter of perception, given that those who claim it doesn't work don't delve deeply into the topic. Their opinion is scientifically vague because it is based on theoretical assumptions. Since this involves probabilities, there is no definitive answer, as it depends on the length of the prefix to determine where a prefix is more likely to be found. Scholars who argue against the idea have yet to demonstrate that a long prefix is close to another. In fact, Bran's proof-of-work confirms the prefix theory, but they behave like stubborn children.