But I am willing to change my mind.
What do you think? Was it on me?
Oooh, I love this one because I've been on both sides at Bruxelles here, many many times. It is a pure racing incident at our skill levels.
1. RacingGrandpa did everything right. Nothing to change here. This is a unique corner entry where inside line gives you considerably faster entry, but at slight cost of exit speed. When RacingGrandpa was entering, he was behind enough for the other driver to think that he has access to the entire corner width. But due to unique nature of corner entry here, RacingGrandpa is already upto his rear wheel and the other driver doesn't know it because he has never experienced it before (or has not learnt from past).
2. Once the other driver realizes that he has accidentally hit RacingGrandpa, he tries to steer away from RacingGrandpa but he is over-correcting due to being spun inside at the same time from the contact. He tries to counter the over-correcting, resulting in more contact, further making him spin inside. The cycle continues.
What to learn here:
1. Nothing to learn for RacingGrandpa.
2. If you're on the outside and if you see the driver behind you is just 0.1 seconds away, know that no matter how far away he looks, he is gonna be on your rear wheel if he takes the inside line without you realizing it. In this case, try your best to stay completely on the outside lane, resulting in massive loss of time. Still better than frantically correcting the induced spin from the contact.
3. If you want to block the driver behind you, place yourself in middle or inside lane. You will still maintain same exit speed as the driver behind you.