Steve: Ages ago, you asked me how far the helmet camera would be displaced laterally on the curved entrance to the roundabout in Magnatom's tanker incident. It was when you told me: "Be warned: I can do maths and physics!" (which caused me to be filled with fear and trepidation, I can tell you!

) Well, I did the calculation (because I was interested) and, with a radius of curvature of 22m (which is about right - from Maptool), at 15mph (which Magnatom said he was doing), the camera would be displaced laterally by approximately 0.4m. Not making any point, and I know there are lots of assumptions and approximations, but I just thought you might be interested.
Tone: Like others have said, there appears to be an underlying assumption here that cars "own" the road and cycles are there on sufferance. It is illustrated by lots of things in the language that is used, such as your recent statement: "I am always in the PP on my Motorbike, but that's because I'm not hindering the traffic; I can keep up with it. You can't say the same of bicycles." (Bicycles
are traffic!) The most telling aspect from the discussion is that it is always assumed in here that the convenience of the motorist is paramount and completely over-rides any consideration regarding the convenience of the cyclist; it is implicitly assumed here that the cyclist should always give up all of his/her momentum and kinetic energy to save the driver losing even a few seconds of journey time. (I am talking about convenience here, not safety, which must of course the be first consideration.) Yes, you may be able to find occasional counter-examples from the discussions, but I'm talking about the general tenor of the discussion. I think this is at the root of a lot of the disagreements in the topic.
Standing back a bit and taking a wider view, bicycles sometimes inconvenience cars because they do not have the same power-to-weight ratio, whilst cars sometimes inconvenience cyclists because they take up a lot more space on the road. There are times when a motorist may feel the cyclist is unnecessarily inconveniencing them by not moving over and allowing them to pass, just as there are times when a cyclist may feel that the motorist is unnecessarily inconveniencing them by not moving over and allowing them to pass. Most of the time, cyclists do move over when there is room to let motorists past, and, most of the time, motorists (e.g. in queues) do move over when there is room to let the cyclists past. This is how it should be, with each road user showing respect for the others.