You may have a point, I half agreed with you above. Prost was more careful than Senna, and had a less aggressive style. Senna to paraphase would always "race to win" he won more races that Prost in 1989 even with the larger amount of DNF's 6-4. Prost did avoid collisions (apart from Japan 89)Stradivarius wrote: I am not putting the blame on Senna for any of these incidents. But that doesn't change the fact that what happened was driver related and it wasn't all the other driver's fault. I would say it was typical racing incidents where both drivers could have avoided a collision by backing off, but none of them did. And this has been my point all the time. Senna rarely backed off, Prost rarely crashed.
Australia, Senna was blind in the worst conditions I have seen a race (maybe Germany 2008 can rival it?), I find it hard to entertain how he could be more careful, I think anyone was prone to plowing into anyone else.
The rest you have said is your "speculation" I can see your points on both Brazil and Portugal. We will never know if Prost in Senna's shoes would have fallen foul, but I can entertain the possibility. Portugal you probably do have a point, not that it was Senna's fault, but him and Mansell would never yield for each other, both were pretty reckless with one another.
Mansell should have not even been on the track due to him being black flagged, but I understand that is irrelevant in discussing the dynamics of the actually crash. Still it was the incompetence of Mansell, that the scenario occured in the first place.