Trying to judge when Formula 1 was at its best is almost impossible and depends very much on who you are asking.
What do you care about more: close racing, great characters or spectacular cars? What about technical innovation versus a pack of snarling Cosworth DFV 'kit cars'?
We've previously looked at raw statistics and conducted Autosport reader votes to try to come up with an answer. There's almost certainly no such thing as a definitive 'greatest era', but the debate can provide insights into what fans want and how to make that happen, particularly pertinent given the upcoming rules change for 2021.