I'm really wondering where you have to go to grad-school for someone to approve a thesis that blatantly speculative.
The title is a bit much but it does say "The title of this thesis is deliberately provocative".
I also quote, from the preface, "This research was funded by the Swiss National Science Foundation under grants 2100-67712.0 and 200020-107616. Many funding agencies are not willing to support such blue-sky research. Their backing has been greatly appreciated."