I can doubt of the engineering approach he advocates, because I am aware that people like me is completely an outsider in this branch of science and I cannot differentiate a charlatan from an actual scientist.
You could fool a person ignorant enough in a speciality with statements such as:
- To fly we just need a way to defeat gravity.
- To resurrect a body we just need to insufflate the soul back to the body.
- To make a head transplant we just need to reconnect the nerves and wait the meat to glue.
- An artificial intelligence will solve our company's problem.
This ver same person could be highly skilled or smart in other aspects. The more technical or scientific we sound the more a subject will give authority to the charlatan.
I ignore if these statements made by this person are overall valid, if the list is exhaust and if the things there are additional factors I ignore. Even in such case we also ignore the deepness of the problem and circumstances related.
Most of people, including myself, are no biologist or cryonogists and have not enough knowledge on that level, in addition it is in the human nature to have high hopes in self perpetuating ourselves. Thats the perfect ground for charlatans to grow.