I'm very glad you said that Dee. I would not want to dismiss 28 years of someone's life as BOLLOCKS. Driven, obsessed he may have been but at least its visionary and, without checking it out (anyone going to Calgary in the near future?) how will we ever know for sure.
The questions I want to ask in archaeological terms are 1: do we know, for how many thousands of years was North America inhabited by its indigenous people and 2: how did they get there. If links can be traced back to other advanced civilisations then anything is possible.