2/6     Any particular reason why abstruse technical publications (ACM,
        Sigmod, what not) are usually in two columns?
        \_ it reads better than one column
        \_ as above, same reason most large-format books are two-column,
           and novels are usually small pages: people lose track if
           their eyes have to sweep too far left to right.
        \_ CHI is not abstruse and it's also two column. it might also
           be because it's more space efficient: equations rarely span
           the entire with of the page. -ali