1. When I thought about this I thought I would easily be able to see 1/500 of a second. So I took an old Olympus 10 camera opened the back and looked through the shutter.
1/1000 of a second nothing, 1/500 of a second nothing. I was amazed that at 1/50 of a second I was still not seeing a clear image. It started at about 1/30 of a second. The best was 1/20 of a second I registered what I had seen at this speed.
It should not have been a suprise as this is the speed movie film is shown and we see it as fluid movement.
2. I went up to our landing and looked through the window. The frame split the view up into sections that fit the question. I looked through the viewfinder and after following the instruction took a shot. Whilst looking I was seeing the relationship between the frame and the view. The position of the window which had a weird perspective until I bobbed down to correct it. I even saw the surround and positioned myself to get the best shot I could.
I felt as if I was seeing no really seeing. Here is the shot!