@Rail Tracer 2 things:
1. That still doesn't give this freudian explanation an 'out'. I'm fine with how enneagram works, but the point is that this Timeless guy, as smart and insightful as he is, cannot solve puzzle he's set out to fix.
2. Personally, I can understand why someone would be skeptical of tritypes, and this my response: don't see the tritype as an actual thing, an actual object out there. Just think of it as a descriptive tool. Healthy people of precisely the same types can still be very different. Take 2 healthy 4w3 so/sp's for example, one can be experimental, were as the other one can be more conservative. One can be more direct and aggressive and the other can be more laid back. Just use tritypes as an extra level of description that we can use and communicate with within the enneagram's framework. I really don't see why we couldn't do this. That seems to be another conversation though.