Monza,
- No, you're wrong. Simply showing that the carbon dating was wrong would increase the probability that the image was of Alfred the Great. Not by a whole lot...
You have yet to demonstrate how this would be the case. You merely assert this as if it were self-evident. This line of "reasoning" also ignores that if any one of the other lines of evidence is correct, the odds remain zero. After all, it would not be impossible for an old cloth to be found and painted. Proving the shroud is 2ka is the FORST step, not the only one.
As for evidence for authenticity, your complete failure to provide any demonstrates that there is none. YOU have convinced me that there is no evidence.