A sci-fi book for non sci-fi readers. Strong characters, family saga plot, a new light on maths, and a search for life beyond the stars, all rolled into a readable tale of 20th century academic life in North America.
She tried a different image: a solution in a beaker - Ideko's mind with hers dissolved into it. She imagined herself precipitating out, white crystals - hexagonal in section, echoing the wall of minds. That did it!