[jack6e]

This may be a (passable) evolution of the Latin alphabet, but it is not the English evolution. Missing are runes, and the lost letters eth, thorn, and yogh, which were still in use alongside the Latin alphabet as late as the 16th century.

[EngineerBetter]

The author addresses this very point, highlighting that the chart is simplified from a more detailed work.

[0x7f800000]

They're not lost. Eth and Thorn are still in use in Icelandic.