A native of Acragas – Greek Agrigento – in the 5th century BCE, the philosopher Empedocles said the universe was made of 4 fundamental elements: air, water, earth, and fire, and that 2 forces act on them: love (attraction) and strife (repulsion). For the following 2000 years or so, it was the best theory going. These days, fame is more fleeting, especially when Thomas De Gendt is in the breakaway, so yesterday’s hero, Filippo Ganna, assembled his entire team around him to defend the jersey.