It's been more than six years since a team other than Mercedes won a Formula 1 world championship. Since the introduction of the turbo-hybrid engine regulations, the Silver Arrows has racked up 89 wins with three drivers, 94 poles, 179 podiums, and the headline accomplishment of six title doubles.
But in 2020 there's more than just a chance that things could change. The main thinking behind this theory (which some fans hold as hope for a change, any change) is that because F1's rules are stable going from 2019 into the new campaign, the field will close up.
This isn't to suggest AlphaTauri or Alfa Romeo will suddenly take the fight to be the championship's top dog to Mercedes, but that there is the possibility that another one of F1's big three could emerge victorious.