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Thanks for posting that. That is a big difference - around 4-5 seconds of time to react in this video vs less than 2 in the compressed video.

Agreed, the silhouette fo the truck is clearly visible 2 seconds before impact which is actually quite a lot of time to react.

I'm reminder of this multi-vehicle accident where you can see some drivers clearly reacting 1-2 seconds before impact. https://www.youtube.com/watch?v=-9yqXzZ16ns