She wrote it in nine days.

It is eleven pages.

It has the nine measurements in it.

It has a table of Maya’s push efficiency on her existing equipment, measured over a twenty-five-metre course, and the same figures from a trial of a properly configured chair, and the difference between the two columns is forty-one per cent.

It has photographs of the pitted hand-rims and of the blistering on both palms, dated.

It has a paragraph about shoulder preservation over a sixty-year horizon and it cites three studies.