The dynamic abstract forms of scuffed chalk and dragged erasers might allude, as those painted precursors might, to the expressive power of the individual gesture, even a yearning towards the sublime: something inexpressible, beyond the limited range of language. No accident, therefore, that Guijarro chooses the study of quantum mechanics as his subject – the study of the physics of the microscopically small, whose very formulae are expressed in abstract terms.