Fernando Alonso says F1 will survive, even if the sport does not dramatically improve the spectacle in the coming years.
The Spaniard has warned that, unless the 2017 rules make racing "fun" for him again, he may retire.
"That’s very possible," he told Der Spiegel.
"I have to renegotiate my contract with McLaren-Honda at the end of 2017, and also consider my personal situation.
"I am now 35. If I still had to reach my dreams or make money, then it would be something else. But after 16 years, all I need is fun," Alonso added.
But even if it’s not fun for him, Alonso thinks F1 will survive.
"Formula one will never really be in danger. The name, the brand is too strong. There are sometimes better times, sometimes worse times, but formula one will always be F1," he added.
Finally, Alonso said he does not regret his decision to leave Ferrari.
"I knew that I would start at McLaren-Honda at a significantly lower level," he said, "but we were all motivated to make progress.
"At Ferrari we would have started at 95 per cent and always remained at 95pc," said Alonso.