Lewis Hamilton's recent offer to contribute to the design of the Miami Formula 1 circuit inevitably drew support, but setting aside the many practical limitations that constrain the design of any street track, there's another problem that means it's no forgone conclusion he would generate a track that's a hit with the fans.
Take Monaco, where F1 returns this week. Despite it offering a unique challenge to the drivers, who must thread the needle for lap after lap within millimetres of the barriers, there will be endless criticism of the race for a lack of overtaking.
This is because there is a dichotomy implicit in circuit design that means what represents a great driver challenge does not necessarily create a spectacular race.