Wellsy said:
its a bit like asking what's the hardest crimpy boulder or hardest boulder with heel hooks. Imo.
I was broadly agreeing with you until this. I'd have said the exact opposite - deciding a hardest crimpy or heel hook boulder is really easy in comparison to technical. Categorising a boulder as eg. contains heel hooks, is not too bad, and then we just need to find the hardest of that list. The problem with "technical" is that literally every boulder requires technique, if climbed by someone at or near their limit - I think you'd be hard pressed to find many boulders that aren't "technical". Even if they require strength in a particular way, that isn't what causes people to take a long time to climb it. For example, using BoD like everyone else has done, what caused Will to take ~10 sessions in Finland wasn't the fact his fingers/other muscles were too weak, and then he suddenly trained them stronger in a couple of weeks; instead, he had to spend time learning the technical aspects of the boulder (as well as the usual skin, conditions, etc).
So I'd agree that when you say "aren't all boulders a bit technical", but actually I'd think we'd have a much bigger chance of finding the hardest boulder with a heel hook!
I am intrigued now though... what's the hardest not technical boulder? Or just any examples of very non technical? My initial thought was something like rainbow rocket, feels like it'd be one where you either have the power or not, but actually I'm sure there's plenty of ways to use technique to make it easier, and therefore maybe it is technical!?