Cryonics: wishful thinking or cold reality?

Skeptics member Michael Clark will take us through the topic of cryonics. He says:
“When I die I plan get my head frozen and shipped to a facility to be put in liquid nitrogen. But on their popular sceptics show Pen and Teller say that cryonics is bull****. I would like you to examine my belief with your best sceptical techniques, for and against cryonics. I promise I won’t be offended :). If cryonics is false, I want to believe it’s false. And if cryonics is true I want to believe it’s true. I’ll start with a 45 minute presentation explaining what the idea is, and some of the interesting facts and basic arguments. Did you know there are more men signed up to freeze themselves, but more women are actually frozen. Why is that? Did you know that some Christians get frozen. How does that work? Then Tanya will open the floor to people who want to apply (and explain) sceptical techniques for and against cryonics. If there are none I will take you through a couple of my own.”
Sounds fascinating!