To have seen him on start I would have had to have had like 85 fov to have seen him, okay I still should have known he was there - I was focusing on the back of the car infront of me not the car to the side of me before the start - as my gap to him is what decides how good my start can be with draft etc. When I looked to my left I couldnt see him so I moved. Ofc stupid, but its 1 of those things. I didnt cause him to crash. The 2nd accidents were unrelated, as he was the 1 who was contacted last in all of that, after the damage was done