Many cryonics companies have failed; as of 2018, all but one of the pre-1973 batch had gone out of business, and their stored corpses have been defrosted and disposed of.

What is the success rate of cryonics?

He is on the board of the Brain Preservation Foundation and has elected to have only his head preserved after death, even though he estimates a success rate of just 3%. Like Mr Kowalski, he argues the skills needed to become a cryonics technician are already in use in many medical professions.

What famous people have used cryogenics?