ABBA, the Swedish pop phenomenon of the 1970s and 1980s, found fame by winning the cheesy Eurovision Song Contest. Now, shockingly, it seems that the voting on this cherished European institution is subject to collusion that can skew the results.
Eurovision is an annual contest in which European countries elect a national song and award scores to others in the final. Some people suspect conspiracy in the voting. Greece and Cyprus, for example, always seem to favour each other. So Derek Gatherer, a computer programmer from Glasgow, UK, decided to investigate. He ran computer simulations to find the possible range…
