He is convinced that the Shroud must be fake. But if it this, there are still a lot of questions to be solved. We still don't know how it could be made. For a long time, it was accepted that it was a painting. But know, we know better.
Nobody paints without outlines.
The body of Christ has a strong effect of perspective. And the image reflects so much details. We can see the abrasions on the left knee, the left forehead and on the back - exactly on the place where they should be when someone is falling to the ground, while he carries a cross. The Shroud contains organical elements like blood, sweat, myrrh, aloe and 11 different kinds of stoned pollen - six of them are identified as pollen of plants that didn't exist anymore in the middle ages . But they could be found 2000 years ago in Palestine.