Both aldehyde fixation and liquid-nitrogen cryopreservation are techniques easy to perform, and routinely employed in ~every biology lab for cell cultures. Reversing the latter is trivial and also routine; reversing the former is not possible with current tech.
How relevant you consider this is up to you. My guess is that people intuit that with improved technology, the relative difficulty of reversing these on the macro scale would be the same.
Both aldehyde fixation and liquid-nitrogen cryopreservation are techniques easy to perform, and routinely employed in ~every biology lab for cell cultures. Reversing the latter is trivial and also routine; reversing the former is not possible with current tech.
How relevant you consider this is up to you. My guess is that people intuit that with improved technology, the relative difficulty of reversing these on the macro scale would be the same.