But Mr. Eighner was such an agreeably yackety companion that his plight sometimes felt abstract.

We show that such deformations still exists after quotienting out by diffeomorphisms only if the non linear addition is non associative..

Well then, what's do wi' thee ; for thou's lookt o mornin as yonderly as if thou'd lost th' guiders o' thy een ?

Yes, but what are the tangibles?