Quote:
Originally Posted by Manichean
I didn't say it was easy. But one can tell relatively well how light is going to arrive from a given point in space, if you can observe what lies between there and here.
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I am so sorry, I edited my previous post in a rather improper way.
What happens between here and there cannot be corrected if you do not know
where it happened. Only a tomographic approach gives you that, including radar in it, in a generalized sense. For doing that the intensity alone is not sufficient.