Re: 4 seconds?
Although I agree with your analysis of panic-ed human collision avoidance I think the four seconds was chosen to try and tease out what humans would see as an 'acceptable' hierarchy of harm should such a thing come to pass.
Although I agree with your analysis of panic-ed human collision avoidance I think the four seconds was chosen to try and tease out what humans would see as an 'acceptable' hierarchy of harm should such a thing come to pass.