Has anyone mentioned this?
Miles’ local climate is 6 months staggered from GB, so he is effectively starting in Autumn.
The ‘target’ plots on the chart are based on a British year with winter for the first three months and then spring, giving the cyclists a chance to regain lost distance and then put on some through summer and then stabilizing in autumn up to the end of the year.
Miles’ ‘Target’ lines should be slightly upwards, dipping and then rising sharply around Christmas. His ‘Actual’ is going the wrong way.
That's a good observation. But I disagree with your conclusions.
For one thing, the target lines are wholy dependent on the riders' individual strategies. Hence setting the x-axis to a perfect "even" pace was the only logical choice.
It's also flawed to describe any climate as just being "England + n months". Too many other variables (e.g. Florida and parts of Oz will be too hot for 200-mile days in peak local summer).
Then there is Miles' crazy sleep patterns!
All opinion of course - time will shine light on all this ...