As I told you on my website, the congress you mention is not a scientific and peer-reviewed one, but is one of those shroudologist meeting (sic) where pensioners and lawyers give papers on C14 dating and things like that. . . .
The reader goes on to say:
He does have one of the best collections of Jesus and Mary pareidolia. It’s quite comprehensive. Notice the snide subtitle, though: “Jesus’ apparitions on Earth, and those of his Virgin Mother, that prove the existence of God…”
I guess we wouldn’t know better, would we? We are mere pensioners and lawyers.