Are there any references to other scientific papers in that document? I didn't see any.
Edit/post script: I also don't see that the word "algebra" is mentioned in the document at all. By comparison the Wikipedia page on spinors uses the word "algebra" 116 times. That seems odd if this theory is based on a deep understanding of spinors.
http://norbert-winter.com/wp-content/uploads/2018/02/2014-05...