This video is from the Imola GP in 1974. The rider is Mimmo Cazzaniga, crashing at Tosa corner.
Even though today's speeds are higher, it makes you realise how much safer circuits are now, than they were then. The good old days. Hay bales? Being rescued by men in pants? I'll stick with gravel traps and paramedics, thanks.
Mimmo Cazzaniga survived and these days he's a truck driver. Probably quite a fast one.