> I assume the 70% either have to do with C++ or - more likely - there is a huge selection bias.

Daniel admits that he "might" just be counting differently.

I expect some of it is C++ because there sure is plenty of additional complexity to fit in the same size brain and yet you retain the same absolute requirement to juggle everything at all times or the software blows up but I'd be very surprised if it accounted for this huge disparity.